The frequency distribution below shows the monthly expenditure on gasoline for a sample of 14 individuals....

The frequency distribution below shows the monthly expenditure on gasoline for a sample of 14 individuals.

Expenditure	Frequency
55 - 59	2
60 - 64	3
65 - 69	4
70 - 74	3
75 - 79	2

#1a). Compute the coefficient of variation.

#1b) The prior probabilities for events A1 and A2 are P (A1) = .40 and P (A2) = .60. It is also known that P (A1 n A2) = 0. Suppose P (B | A1) = .20 and P (B | A2) = .05.

#1bi). Are A1 and A2 mutually exclusive? Explain?

#1bii). Compute P(A1 n B) and P(A2 n B)

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