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Assume that aset of test scores is normally distributed with a mean of 100 and a standard deviation of 20 use the 68-95-99?
Updated: 10/19/2022
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∙ 13y agoBest Answer
68% of the scores are within 1 standard deviation of the mean -80, 120
95% of the scores are within 2 standard deviations of the mean -60, 140
99.7% of the scores are within 3 standard deviations of the mean -40, 180
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∙ 13y agoThis answer is:
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