Describe the Distribution of the Sample Mean-Samples from a Population $\$ 1 , \$ 5 , \$ 10 , \$ 20 , \$ 50$

Multiple Choice

Describe the Distribution of the Sample Mean-Samples from a Population That Is Not Normal
-John has six bills of paper money in the following denominations: $\$ 1 , \$ 5 , \$ 10 , \$ 20 , \$ 50$ , and $\$ 100$ If he selects 3 bills at a time how many, how many groups can be formed?

A) 20
B) 10
C) 30
D) 15