A population of scores is normally distributed with a mean of 100 and a standard
deviation of 20. Approximately _____ percent of the scores fall in the interval between 60
and 100.
a. 14
b. 34
c. 68
d. 48
Question 2
A population of scores is normally distributed with a mean of 100 and a standard
deviation of 20. Approximately _____ percent of the scores fall in the interval between 100
and 140.
a. 48
b. 34
c. 68
d. 84
