Multiple Choice Question Which one of the following is true about events that are both mutually exclusive and collectively exhaustive? The sum of their probabilities must be between 0 and 1. The sum of their probabilities must be a The sum of their probabilities must be greater than 1. The sum of their probabilities must be 1.

Question

Multiple Choice Question Which one of the following is true about events that are both mutually exclusive and collectively exhaustive? The sum of their probabilities must be between 0 and 1. The sum of their probabilities must be a The sum of their probabilities must be greater than 1. The sum of their probabilities must be 1.

Answer 1

The correct answer is: The sum of their probabilities must be 1.Explanation: Events that are both mutually exclusive and collectively exhaustive are events that cannot occur at the same time (mutually exclusive) and cover all possible outcomes (collectively exhaustive). In such a case, the sum of their probabilities must be 1, as they represent all possible outcomes of the experiment.

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