The Graduate Record Examination (GRE) is a test required for admission to many U.S. graduate schools. Students' scores on the quantitative portion of the GRE follow a normal distribution with mean 150 and standard deviation 8.8. (Source:www.ets.org). A graduate school requires that students score above 160 to be admitted.

Use the standard normal distribution to determine the following:

68% of the scores lie between what two values?

95% of the scores lie between what two values?

99% of the scores lie between what two values?