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The scores on a psychology exam were normally distributed with a mean of 61 and a standard deviation of 9 A failing grade on the

The scores on a psychology exam were normally distributed with a mean of

61

and a standard deviation of

9

A failing grade on the exam was anything 2 or more standard deviations below the mean.

What was the cutoff for a failing score?

Approximately what percentage of the students failed?

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