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The frequency distribution below shows the monthly expenditure on gasoline for a sample of 14 individuals. Expenditure Frequency 55...

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Question

Statistics

The frequency distribution below shows the monthly expenditureon 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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