A Researcher Reported That for 100 College Students, the Mean

Multiple Choice

A researcher reported that for 100 college students, the mean was 80 and the standard deviation was 12.6. How is the standard deviation best interpreted?

A) The variability of the scores around the mean was 12.6.
B) The variability of the scores from each other was 12.6.
C) The minimum value is 0, so 12.6 is a large standard deviation.
D) All of the scores were within 12.6 of the mean (i.e., 67.4-92.6) .
E) The score of a person is expected to deviate 12.6 from one time to another.