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cobbiegirl8996
20.05.2020 •
Mathematics
Dean mixed together different kind of nuts as a snack. There were 9 nuts in the bowl, 7 of
which were hazelnuts.
If Dean randomly chose to eat 6 of the nuts, what is the probability that all of them are
hazelnuts?
Write your answer as a decimal rounded to four decimal places.
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Ответ:
0.0833
Step-by-step explanation:
There are 7C6 = 7 ways to choose 6 hazelnuts from the 7 present.
There are 9C6 = 84 ways to choose 6 nuts from the 9 present.
The probability of choosing 6 hazelnuts from the 9 present is ...
7/84 = 1/12 = 0.0833...(repeating)
The probability of interest is 0.0833.
Comment on the notation
The notation nCk means n!/(k!(n-k)!). It is the number of ways k items can be chosen from n items without regard to order. It can be pronounced "n choose k."
Ответ:
2.5%
Step-by-step explanation:
I ain do that