Предмет: Другие предметы, автор: yulia202324

1 В коробке находится 6 черных и 4 синих карандашей. Какова вероятность того, что два карандаша, взятых наудачу, окажутся одного цвета?

2 Вероятность поражения цели первым стрелком при одном выстреле равна 0,8, а вторым стрелком 0,6. Найти вероятность того, что цель будет поражена только одним стрелком.

3 Четыре станка-автомата производят детали на общий конвейер. Вероятность получения брака на первом автомате равна 0,009, а на трех остальных-0,006. Производительность у первого автомата вдвое больше, чем у каждого из остальных. Какова вероятность того, что наудачу взятая с конвейера деталь окажется дефектной.

Ответы

Автор ответа: ShpakovkaBoy

Всего 10 карандашей 6/10 = 3/5 вероятность того что будут черные одинакове а 4/10= 2/5 это синие отнимаем 3/5 и 2/5 получаем ответ 1/5

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50 БАЛЛОВ

In 1921, the first standard kiosk appeared, the K1. The K1 was intended for rural areas and was made of concrete.

In the late 1920s, the Royal Fine Arts Commission on behalf of the GPO invited a few people to design a new kiosk. In 1926 the chosen design appeared, Giles Gilbert Scott's K2. The K2 was of cast iron construction and a few hundred remain today

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Match the types of the phone boxes to their numbers of the pictures and the descriptions.

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Перетащите элементы на пустые поля сверху (каждый может быть использован несколько раз)

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6 - was too big and too expensive and it was of cast iron construction. Designed by Giles Gilbert Scott.

8 – It was huge because it was intended to be a 24-hour post office with a stamp machine and letterbox added to the back.

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