Question

How many ways can three people be selected from a group of seven people if order
DOES matter?

Answer 1

210 ways

Explanation:

The is a permution problem.

Formula for permutations of r things taken from n things is

`P(n,r) = (n!)/((n - r)!)`

`(7!)/((7 - 3)!) = (7!)/(4!) = 7*6*5 = 210` ways