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###### Education The scores on a national exam are normally distributed with a mean of 150 and a standard deviation of $16 .$ You scored 174 on the exam.(a) How far, in standard deviations, did your score exceed the national mean?(b) What percent of those who took the exam had scores lower than yours?

Education The scores on a national exam are normally distributed with a mean of 150 and a standard deviation of $16 .$ You scored 174 on the exam. (a) How far, in standard deviations, did your score exceed the national mean? (b) What percent of those who took the exam had scores lower than yours?

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