Question

A book club offers a choice of 8 books from a list of 40. In how many ways can a member make a selection?

Solution

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Answered 1 year ago
Answered 1 year ago
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Remember that the number of combinations if rr items are taken from nn items is:

nCr=n!(nr)!r!(1)_nC_r=\frac{n!}{(n-r)!r!}\tag{1}

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