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a) A and B. Is it exhaustive? Is it mutually exclusive? b) A and C. Is it exhaus

ID: 3175205 • Letter: A

Question

a) A and B. Is it exhaustive? Is it mutually exclusive?

b) A and C. Is it exhaustive? Is it mutually exclusive?

c) A and D. Is is exhaustive? Is it mutually exclusive?

d) B and C. Is it exhaustive? Is it mutually exclusive?

You roll a die with the sample space S = {1, 2, 3, 4, 5, 6}. You define A as {1 3 4}, B as {1 2 3 5 6}, C as {1 4}, and D as {3 4 5}. Determine which of the following events are exhaustive and/or mutually exclusive.

a) A and B. Is it exhaustive? Is it mutually exclusive?

b) A and C. Is it exhaustive? Is it mutually exclusive?

c) A and D. Is is exhaustive? Is it mutually exclusive?

d) B and C. Is it exhaustive? Is it mutually exclusive?

Explanation / Answer

Exhaustive: Union is equal to S.

mutually exclusive: intersection is empty

(a) Exhaustive but not mutually exclusive

(b) Neither Exhaustive nor mutually exclusive

(c) Neither Exhaustive nor mutually exclusive

(d) Exhaustive but not mutually exclusive