Question: A student is taking a true/false test with 48 questions. (a) Suppose she has a probability p = 3/4 of getting each question right. What

A student is taking a true/false test with 48 questions.

(a) Suppose she has a probability p = 3/4 of getting each question right. What is the probability that she will get at least 38 right?

(b) Answer the last question if she knows the answers to half the questions and flips a coin to answer the other half. Notice that in each case the expected number of questions she gets right is 36.

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a The mean is 4834 36 The standard deviation is 483414 3 38 corr... View full answer

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