Practice Problems: Standard Scores - Answer

For the numbers below find percent of cases falling between the two z-scores.

a. z = -.38 & z = 1.63	b. z = .88 & z = 1.55
c. z = -1.93 & z = 1.09	d. z = -2.22 & z = - 1.34


percent = 59.64	percent = 12.88

percent = 83.53 percent = 7.69