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из колоды из 36 карт вытаскивают две карты без возвращения. Какова вероятность того, что будут выбраны карты одной масти
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Предмет:
Математика -
Автор:
pearl1k8i - 5 лет назад
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Ответы 1
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Всего карт 36!9 карт одинаковы одной масти!Поэтому вероятность 9:36=0,25
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Автор:
darioluxz - 5 лет назад
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Great Britain is country where almost 50% of the working population (1) full-time employment. Since the 1950s people (2) more interested in part-time work, self-employment and freelance contracts. They prefer temporary employment or even job sharing to 9-to-5 job. Now this (3) in other European countries and each year this trend is getting (4).In the (5) century,our grandparents all had a 'job for life' which gave them security and a guaranteed income. Now, in the changing economic climate, the situation is different. That's what Anne Balmain who gave up teaching, says about her new job. "I've always been fascinated with photography, it's full of experimentation and creativity. I am a university graduate where I got a degree in Foreign Languages but I a job as a teacher. It caused a lot stress and depression. One day my friend advised me (7) to earn a living by making photographs at weddings. It was chance. I began last summer and it worked out. I am now gaining confidence when assisting professional photographers. Last weekend (8) a very good contract so my days are now planned two weeks ahead. The portfolio I'm developing will open new horizons and give the opportunity to do album covers and magazine photography in the future."
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