lemare0918 lemare0918

21-02-2024
Mathematics

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Test scores are normally distributed with a mean of 76 and a standard deviation of 10. (Show also the normal distribution graph)
a. In a group of 230 tests, how many students score above 96?
b. In a group of 230 tests, how many students score below 66?
c. In a group of 230 tests, how many students score within one standard deviation of the mean?

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