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AP Statistics/Unit 4: Probability, Random Variables, and Probability Distributions
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Joint Probability and Mutually Exclusive Events
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If the joint probability of a student choosing the ‘Longest Answer’ on an exam and also scoring between 80 and 100 on it is nonzero, can these two events be mutually exclusive?

A

Yes, because mutually exclusive events cannot occur together.

B

They are mutually exclusive only if their probabilities sum to 1.

C

Yes, they are mutually exclusive.

D

No, they are not mutually exclusive.

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