5C2 = 5! / [(5 - 2)! * 2!]
5 ways to pick the 1st member and 4 ways to pick the 2nd
... but ... Jane and Jim is the same as Jim and Jane
so ... (5* 4) / 2
A company's board of directors wants to form a committee of 2 of its members. There are 5 members to choose from. How many different committees of 2 members could possibly be formed?
1 answer