Номер 1, страница 185, часть 1 - гдз по алгебре 10 класс учебник Пак, Ардакулы

Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019

Авторы: Пак О. В., Ардакулы Д., Ескендирова Е. В.

Тип: Учебник

Издательство: Алматыкітап баспасы

Год издания: 2019 - 2026

Часть: 1

ISBN: 978-601-01-3958-9

Рекомендовано Министерством образования и науки Республики Казахстан

Часть 1. Глава 4. Вероятность. Параграф 1. Основные понятия. 1.3. Сумма и произведение событий. Задачи - номер 1, страница 185.

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                      "subject" => 542
                      "class_subject" => 387
                    ]
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1148
              #items: []
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119328
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => null
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1121}
            "field_page_start" => "6"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => array:1 [
              0 => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
            ]
            "field_branch_covers" => array:1 [
              0 => array:4 [
                "path" => "/media/algebra_10/baspasy-u19/covers/cover1.webp?ts=1752152865"
                "alt" => ""
                "width" => "1940"
                "height" => "2895"
              ]
            ]
            "book" => Illuminate\Database\Eloquent\Collection {#1150}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1148}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        1 => App\Models\Branch {#1149
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119408
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Вероятность"
            "field_branch_order" => "4"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1154
              #items: array:1 [
                0 => App\Models\Term {#1151
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [
                      "field_accusative_case" => "Главу"
                       …5
                    ]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #original: array:7 [
                    "id" => 29
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Глава"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => null
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "178"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
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            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1153
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1152
              #items: array:1 [
                0 => App\Models\Branch {#1034}
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119408
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Вероятность"
            "field_branch_order" => "4"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1154}
            "field_page_start" => "178"
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            "field_display_branch_in_title" => "1"
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            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
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            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1153}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1152}
          ]
          #changes: []
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          #attributeCastCache: []
          #dateFormat: null
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          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        2 => App\Models\Branch {#1155
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119409
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Основные понятия"
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1159
              #items: array:1 [
                0 => App\Models\Term {#1156
                  #connection: "mysql"
                  #table: "terms"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: false
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #original: array:7 [
                    "id" => 32
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "name" => "Параграф"
                    "field_cases" => array:6 [ …6]
                    "field_page_check_not_needed" => null
                    "field_short_name" => "§"
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "179"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
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            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1158
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1167
              #items: array:1 [
                0 => App\Models\Branch {#1166
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119408
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Вероятность"
                    "field_branch_order" => "4"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1168 …2}
                    "field_page_start" => "178"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
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                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1170 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119408
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Вероятность"
                    "field_branch_order" => "4"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1168 …2}
                    "field_page_start" => "178"
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                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
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                    "field_metatags_title" => null
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                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1169 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1170 …2}
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
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                  #dispatchesEvents: []
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                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119409
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Основные понятия"
            "field_branch_order" => "1"
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1159}
            "field_page_start" => "179"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1158}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1167}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
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          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        3 => App\Models\Branch {#1160
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119412
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "1.3. Сумма и произведение событий"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1157
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "184"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1163
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1176
              #items: array:1 [
                0 => App\Models\Branch {#1175
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
                  +wasRecentlyCreated: false
                  #escapeWhenCastingToString: false
                  #attributes: array:24 [
                    "id" => 1119409
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Основные понятия"
                    "field_branch_order" => "1"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_page_start" => "179"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                  ]
                  #original: array:24 [
                    "id" => 1119409
                    "created_at" => "2026-04-10 13:58:26"
                    "updated_at" => null
                    "field_display_title" => "Основные понятия"
                    "field_branch_order" => "1"
                    "field_url" => null
                    "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1177 …2}
                    "field_page_start" => "179"
                    "field_branch_display" => "0"
                    "field_branch_expanded" => "0"
                    "field_display_branch_in_title" => "1"
                    "field_display_task_interval" => "0"
                    "field_display_branch_page" => "1"
                    "field_branch_title_in_content" => "0"
                    "field_navigation_title" => null
                    "field_metatags_title" => null
                    "field_metatags_description" => null
                    "field_h1" => null
                    "field_description_top" => null
                    "field_description_bottom" => null
                    "field_branch_cover" => []
                    "field_branch_covers" => []
                    "book" => Illuminate\Database\Eloquent\Collection {#1178 …2}
                    "branch_parent" => Illuminate\Database\Eloquent\Collection {#1179 …2}
                  ]
                  #changes: []
                  #casts: []
                  #classCastCache: []
                  #attributeCastCache: []
                  #dateFormat: null
                  #appends: []
                  #dispatchesEvents: []
                  #observables: []
                  #relations: []
                  #touches: []
                  +timestamps: true
                  +usesUniqueIds: false
                  #hidden: []
                  #visible: []
                  #fillable: []
                  #guarded: array:1 [
                    0 => "*"
                  ]
                }
              ]
              #escapeWhenCastingToString: false
            }
          ]
          #original: array:24 [
            "id" => 1119412
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "1.3. Сумма и произведение событий"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1157}
            "field_page_start" => "184"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1163}
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1176}
          ]
          #changes: []
          #casts: []
          #classCastCache: []
          #attributeCastCache: []
          #dateFormat: null
          #appends: []
          #dispatchesEvents: []
          #observables: []
          #relations: []
          #touches: []
          +timestamps: true
          +usesUniqueIds: false
          #hidden: []
          #visible: []
          #fillable: []
          #guarded: array:1 [
            0 => "*"
          ]
        }
        4 => App\Models\Branch {#1164
          #connection: "mysql"
          #table: "branches"
          #primaryKey: "id"
          #keyType: "int"
          +incrementing: true
          #with: []
          #withCount: []
          +preventsLazyLoading: false
          #perPage: 15
          +exists: true
          +wasRecentlyCreated: false
          #escapeWhenCastingToString: false
          #attributes: array:24 [
            "id" => 1119413
            "created_at" => "2026-04-10 13:58:26"
            "updated_at" => null
            "field_display_title" => "Задачи"
            "field_branch_order" => null
            "field_url" => null
            "field_branch_type" => Illuminate\Database\Eloquent\Collection {#1161
              #items: []
              #escapeWhenCastingToString: false
            }
            "field_page_start" => "185"
            "field_branch_display" => "0"
            "field_branch_expanded" => "0"
            "field_display_branch_in_title" => "1"
            "field_display_task_interval" => "0"
            "field_display_branch_page" => "1"
            "field_branch_title_in_content" => "0"
            "field_navigation_title" => null
            "field_metatags_title" => null
            "field_metatags_description" => null
            "field_h1" => null
            "field_description_top" => null
            "field_description_bottom" => null
            "field_branch_cover" => []
            "field_branch_covers" => []
            "book" => Illuminate\Database\Eloquent\Collection {#1172
              #items: array:1 [
                0 => App\Models\Book {#1120}
              ]
              #escapeWhenCastingToString: false
            }
            "branch_parent" => Illuminate\Database\Eloquent\Collection {#1185
              #items: array:1 [
                0 => App\Models\Branch {#1184
                  #connection: "mysql"
                  #table: "branches"
                  #primaryKey: "id"
                  #keyType: "int"
                  +incrementing: true
                  #with: []
                  #withCount: []
                  +preventsLazyLoading: false
                  #perPage: 15
                  +exists: true
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            "text" => "<p><strong>1.</strong> Игральный кубик подбрасывается один раз. Приведите 4 примера событий при таком испытании, одно из которых является достоверным, а другое – невозможным.</p>"
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            "text" => "<p>\tВ данном испытании — однократном подбрасывании игрального кубика — существует 6 равновероятных исходов: выпадение на верхней грани числа 1, 2, 3, 4, 5 или 6.\t<br>\tСобытие в теории вероятностей — это любое подмножество множества всех исходов.\t<br>\tПриведем четыре примера событий, соответствующих условию задачи.</p><p>\t<strong>1. Достоверное событие</strong><br>\tДостоверным называется событие, которое в результате испытания произойдет со 100% вероятностью. Его вероятность равна 1.<br>\t<em>Пример:</em> Событие А = "Выпало число от 1 до 6 включительно".<br>\tТак как на кубике могут выпасть только числа 1, 2, 3, 4, 5 или 6, любой исход испытания будет благоприятным для этого события. Количество благоприятных исходов равно 6.<br>\tВероятность события А: $P(A) = \frac{6}{6} = 1$.<br>\tОтвет: Достоверное событие: "выпало натуральное число, меньшее 7".</p><p>\t<strong>2. Невозможное событие</strong><br>\tНевозможным называется событие, которое в результате испытания не может произойти. Его вероятность равна 0.<br>\t<em>Пример:</em> Событие B = "Выпало число 7".<br>\tНа стандартном игральном кубике нет грани с числом 7, поэтому такой исход невозможен. Количество благоприятных исходов равно 0.<br>\tВероятность события B: $P(B) = \frac{0}{6} = 0$.<br>\tОтвет: Невозможное событие: "выпало число 7".</p><p>\t<strong>3. Случайное событие (пример 1)</strong><br>\tСлучайное событие — это событие, которое может произойти, а может и не произойти. Его вероятность — число от 0 до 1 (не включая 0 и 1).<br>\t<em>Пример:</em> Событие C = "Выпало четное число".<br>\tЭтому событию благоприятствуют исходы: 2, 4, 6. Всего 3 благоприятных исхода.<br>\tВероятность события C: $P(C) = \frac{3}{6} = \frac{1}{2}$.<br>\tОтвет: Случайное событие: "выпало четное число".</p><p>\t<strong>4. Случайное событие (пример 2)</strong><br>\t<em>Пример:</em> Событие D = "Выпало число, большее 4".<br>\tЭтому событию благоприятствуют исходы: 5, 6. Всего 2 благоприятных исхода.<br>\tВероятность события D: $P(D) = \frac{2}{6} = \frac{1}{3}$.<br>\tОтвет: Случайное событие: "выпало число, большее 4".</p>"
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            "text" => "<p>\tВ данном испытании — однократном подбрасывании игрального кубика — существует 6 равновероятных исходов: выпадение на верхней грани числа 1, 2, 3, 4, 5 или 6.\t<br>\tСобытие в теории вероятностей — это любое подмножество множества всех исходов.\t<br>\tПриведем четыре примера событий, соответствующих условию задачи.</p><p>\t<strong>1. Достоверное событие</strong><br>\tДостоверным называется событие, которое в результате испытания произойдет со 100% вероятностью. Его вероятность равна 1.<br>\t<em>Пример:</em> Событие А = "Выпало число от 1 до 6 включительно".<br>\tТак как на кубике могут выпасть только числа 1, 2, 3, 4, 5 или 6, любой исход испытания будет благоприятным для этого события. Количество благоприятных исходов равно 6.<br>\tВероятность события А: $P(A) = \frac{6}{6} = 1$.<br>\tОтвет: Достоверное событие: "выпало натуральное число, меньшее 7".</p><p>\t<strong>2. Невозможное событие</strong><br>\tНевозможным называется событие, которое в результате испытания не может произойти. Его вероятность равна 0.<br>\t<em>Пример:</em> Событие B = "Выпало число 7".<br>\tНа стандартном игральном кубике нет грани с числом 7, поэтому такой исход невозможен. Количество благоприятных исходов равно 0.<br>\tВероятность события B: $P(B) = \frac{0}{6} = 0$.<br>\tОтвет: Невозможное событие: "выпало число 7".</p><p>\t<strong>3. Случайное событие (пример 1)</strong><br>\tСлучайное событие — это событие, которое может произойти, а может и не произойти. Его вероятность — число от 0 до 1 (не включая 0 и 1).<br>\t<em>Пример:</em> Событие C = "Выпало четное число".<br>\tЭтому событию благоприятствуют исходы: 2, 4, 6. Всего 3 благоприятных исхода.<br>\tВероятность события C: $P(C) = \frac{3}{6} = \frac{1}{2}$.<br>\tОтвет: Случайное событие: "выпало четное число".</p><p>\t<strong>4. Случайное событие (пример 2)</strong><br>\t<em>Пример:</em> Событие D = "Выпало число, большее 4".<br>\tЭтому событию благоприятствуют исходы: 5, 6. Всего 2 благоприятных исхода.<br>\tВероятность события D: $P(D) = \frac{2}{6} = \frac{1}{3}$.<br>\tОтвет: Случайное событие: "выпало число, большее 4".</p>"
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№1 (с. 185)
Условие. №1 (с. 185)
скриншот условия
Алгебра, 10 класс Учебник, авторы: Пак Олег Владимирович, Ардакулы Дархан, Ескендирова Елена Викторовна, издательство Алматыкітап баспасы, Алматы, 2019, Часть 1, страница 185, номер 1, Условие

1. Игральный кубик подбрасывается один раз. Приведите 4 примера событий при таком испытании, одно из которых является достоверным, а другое – невозможным.

Решение 2 (rus). №1 (с. 185)

В данном испытании — однократном подбрасывании игрального кубика — существует 6 равновероятных исходов: выпадение на верхней грани числа 1, 2, 3, 4, 5 или 6.
Событие в теории вероятностей — это любое подмножество множества всех исходов.
Приведем четыре примера событий, соответствующих условию задачи.

1. Достоверное событие
Достоверным называется событие, которое в результате испытания произойдет со 100% вероятностью. Его вероятность равна 1.
Пример: Событие А = "Выпало число от 1 до 6 включительно".
Так как на кубике могут выпасть только числа 1, 2, 3, 4, 5 или 6, любой исход испытания будет благоприятным для этого события. Количество благоприятных исходов равно 6.
Вероятность события А: $P(A) = \frac{6}{6} = 1$.
Ответ: Достоверное событие: "выпало натуральное число, меньшее 7".

2. Невозможное событие
Невозможным называется событие, которое в результате испытания не может произойти. Его вероятность равна 0.
Пример: Событие B = "Выпало число 7".
На стандартном игральном кубике нет грани с числом 7, поэтому такой исход невозможен. Количество благоприятных исходов равно 0.
Вероятность события B: $P(B) = \frac{0}{6} = 0$.
Ответ: Невозможное событие: "выпало число 7".

3. Случайное событие (пример 1)
Случайное событие — это событие, которое может произойти, а может и не произойти. Его вероятность — число от 0 до 1 (не включая 0 и 1).
Пример: Событие C = "Выпало четное число".
Этому событию благоприятствуют исходы: 2, 4, 6. Всего 3 благоприятных исхода.
Вероятность события C: $P(C) = \frac{3}{6} = \frac{1}{2}$.
Ответ: Случайное событие: "выпало четное число".

4. Случайное событие (пример 2)
Пример: Событие D = "Выпало число, большее 4".
Этому событию благоприятствуют исходы: 5, 6. Всего 2 благоприятных исхода.
Вероятность события D: $P(D) = \frac{2}{6} = \frac{1}{3}$.
Ответ: Случайное событие: "выпало число, большее 4".

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