Question: A test consists of 100 true false questions Joe did not

A test consists of 100 true-false questions. Joe did not study, and on each question he randomly guesses the correct response. Jane studied a little and has a 0.60 chance of a correct response for each question.
a. Approximate the probability that Jane’s score is nonetheless lower that Joe’s.
b. Intuitively, do you think that the probability answer to part a would decrease or would increase if the test had only 50 questions? Explain.

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  • CreatedSeptember 11, 2015
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