Question
A student is asked to answer 7 out of 13 questions on an exam.
In how many ways can she select the questions to be answered?
In how many ways can she select the questions to be answered?
Answers
That would simply be
C(13,7)
= 13!/(7!6!)
= 1716
C(13,7)
= 13!/(7!6!)
= 1716
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