3 years ago

9 students volunteer for a committee. How many different 7-person committees can be chosen?

1 answer:

7 0

If order doesn't matter (e.g. all the positions in the committee are essentially identical) then the number of possible choices is $\dbinom97=\dfrac{9!}{7!(9-7)!}=36$ .

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2 years ago

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2 years ago

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Alenkasestr [34]

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