Mathematics, 22.06.2019 23:00, ahrensy8444

The scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation of 6. 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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The scores on a psychology exam were normally distributed with a mean of 56 and a standard deviation...