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When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores? A) 40 and 100 B)
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Oct 20, 2019
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When Mrs. Myles gave a test, the scores were normally distributed with a mean of 72 and a standard deviation of 8. This means that 95% of her students scored between which two scores?
A) 40 and 100
B) 48 and 96
C) 56 and 88
D) 64 and 80
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Ed Smith
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95% are within 2 standard deviations of the mean, that is, 72∓2×8. The appropriate choice is ...
C) 56 and 88
Cheluis
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