Find the percentile for the observed value in the following situations:
a. Quantitative reasoning GRE score of 146 (mean 5 151.3, s. d. 5 8.7).
b. Stanford-Binet IQ score of 97 (mean 5 100, s. d. 5 15).
c. Woman’s height of 68 inches (mean 5 65 inches, s. d. 5 2.5 inches).
d. Man’s height of 68 inches (mean = 70 inches, s. d. = 3 inches).