SOLUTION: A student is unprepared for a true/false quiz. The quiz has 5 questions. If she guesses at random, what is the probability that
(a) she gets all 5 answers correct?
(b) she
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-> SOLUTION: A student is unprepared for a true/false quiz. The quiz has 5 questions. If she guesses at random, what is the probability that
(a) she gets all 5 answers correct?
(b) she
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Question 729331: A student is unprepared for a true/false quiz. The quiz has 5 questions. If she guesses at random, what is the probability that
(a) she gets all 5 answers correct?
(b) she gets a grade of B or better (at least 4 correct answers)?
(c) she passes the quiz (at least 3 correct answers)?
(