Mathematics, 23.11.2019 11:31 yoangel9183

Scores on a test are normally distributed with a mean of 68.2 and a standard deviation of 10.4. estimate the probability that among 75 randomly selscted students, at least 20 of them score greater that 78.

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Scores on a test are normally distributed with a mean of 68.2 and a standard deviation of 10.4. esti...