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25 votes
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?

User Laa
by
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1 Answer

6 votes

Answer:

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.

User Grant Li
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