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Mathematics, 19.09.2020 01:01 22iungj

In a set of 100 ACT scores that are normally distributed and with a mean of 23 and standard deviation of 4.69, (a) how
many scores are expected to be lower than 18.31 (one
standard deviation below the mean)? (b) How many of the
100 scores are expected to be below 32.38 (two standard
deviations above the mean)?

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Answers: 2

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In a set of 100 ACT scores that are normally distributed and with a mean of 23 and standard deviati...

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