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Question

The scores on a psychology exam were normally distributed with a mean of $67$ and a standard deviation of $8$. 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?

Solution

VerifiedAnswered 1 year ago

Answered 1 year ago

Step 1

1 of 3In this problem, we created a representation of the distribution considering the mean and the standard deviation:

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