Part 1, What is the probability of randomly selecting a Old service, given you selected a Male?

New service Old service Totals

Male	12	26	38
Female	11	15	26
Totals	23	41	64

Part 2, Calculate the population standard deviation using this data for how long it takes a client to buy your product (in seconds): 45, 23, 29, 63, 12, 15

Part3 What is the Standard Deviation for the following discrete probability distribution?

x	P(X)
0	0.28
1	0.07
2	0.65