Question

The final exam scores in a statistics class were normally distributed with a mean of

70 and a standard deviation of five. What is the probability that a student scored
more than 65% and less than 75% on the exam?

Answer 1

68.27%

Explanation:

By the Empirical Rule, as 65% and 75% are both one standard deviation apart from the mean of 70%, then this represents 68.27% of the data.