If P(A)= 0.4 and P(B)= 0.6,then A and B must be collectively exhaustive.

Name: If P(A)= 0.4 and P(B)= 0.6,then A and B must be collectively exhaustive.
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Quizplus · Accepted Answer

The probabilities of events A and B being 0.4 and 0.6, respectively, do not imply that A and B are collectively exhaustive. They could be independent, overlapping, or mutually exclusive events, and being collectively exhaustive depends on whether together they cover all possible outcomes, not just on their individual probabilities.