Test Scores The scores on a national achievement test were approximately normally distributed, with a mean of 540 and a standard deviation of 110. a. If you achieved a score of 680, how far, in...

Test Scores
The scores on a national achievement test were approximately normally distributed, with a mean of 540 and a standard deviation of 110.

a. If you achieved a score of 680, how far, in standard deviations, did your score depart from the mean?

b. What percentage of those who took the examination scored higher than you?