Estimate the probability of passing a true/false test of 50 questions if 60% (or 30 correct responses)

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Estimate the probability of passing a true/false test of 50 questions if 60% (or 30 correct responses) represents a passing grade and all responses are random guesses.
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Elementary Statistics

ISBN: 9780321225979

3rd Canadian Edition

Authors: Mario F. Triola

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