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The length of time needed to complete a certain test is normally distributed with mean 71 minutes and standard deviation 5 minutes. Find the probability

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The length of time needed to complete a certain test is normally distributed with mean 71 minutes and standard deviation 5 minutes. Find the probability that it will take less than 77 minutes to complete the test. a) 0 0.8849 b) 0 0.1151 c) 0.4425 d) 0 0.5575 e) O 0.5000

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