A researcher used a measure of self-esteem that has a mean of 50 and a standard deviation of 10. If 1,000 respondents completed the scale, how many would she expect to score above the mean?
A)250
B)340
C)500
D)680

Question

Quizplus · Accepted Answer

In a normal distribution, 50% of the scores fall above the mean. Therefore, out of 1,000 respondents, 500 would be expected to score above the mean.

A Researcher Used a Measure of Self-Esteem That Has a Mean