Question

In how many ways can a 2-person committee be chosen from a group of 5 people (where the order in which we choose the 2 people doesn't matter)?

Answer 1

10

Explanation:

(5*4)/2=10

Answer 2

If the order does not matter, then this is a combinations question. The number ways is calculated by

₅C₂ = 5!/[ (5-2)! * 2! ] = 10

There are 10 ways.