The Math Club has 13 members. How many different ways can 4 of the members be selected to attend a conference?
A) 715
B) 17,160
C) 28,561
D) 286
E) 52

Question

Quizplus · Accepted Answer

This is a combination problem, where order does not matter. We can use the formula "n C r" which represents the number of ways to choose r items from a set of n items. In this case, we want to choose 4 members from a set of 13, so our formula is 13 C 4, which simplifies to (13!)/(4!(13-4)!) = 715. Therefore, the answer is A.

The Math Club Has 13 Members