bacon950
08.07.2019 •
Mathematics
Amonth of the year is chosen at random. what is the probability that it has 31 days
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Ответ:
How many months of the year have 31 days? Jan, Mar, May, Jul, Aug, Oct, Dec. That's 7 months out of 12. Thus, if you were to pick a month from these 12, the chances that you'd pick one that had 31 days would be 7/12, or approx. 0.58.
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