Scores on a statistics final in a large class were normally distributed with a mean of 75

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Scores on a statistics final in a large class were normally distributed with a mean of 75 and a standard deviation of 8.

a. What proportion of the scores were above 90?

b. What proportion of the scores were below 65?

c. What is the probability that a randomly chosen score is between 70 and 80?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 06, 2024 12:01 PM

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Scores on a statistics final in a large class were normally distributed with a mean of 75

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Elementary Statistics

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