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В лотерее из 100 билетов имеются 5 выигрышей по 3 руб. , 10 выигрышей по 2 руб., и 55 выигрышей по 1 руб. Какова вероятность на один купленный билет выиграть не менее двух рублей?
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Предмет:
Математика -
Автор:
joshpybu - 6 лет назад
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Ответы 1
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5+10=15 билетов с выигрышем не менее 2х руб15/100=0,15
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Автор:
teresachang - 2 года назад
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