The scores on a psychology exam were normally distributed with a mean of 66 and a standard deviation of 10. 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? . . . The cutoff for a failing score was 46 . (Simplify your answer.) Approximately |percent of the students failed. (Round to one decimal place as needed.)