The value that corresponds to the 50th percentile point in a distribution of scores is the _____ .
a. mode
b. median
c. arithmetic mean
d. sample mean
Question 2
If a distribution is normal with = 50 and = 10, then what proportion of the scores will
fall between 30 and 70?
a. .9544
b. .3413
c. .6826
d. .9974