A given distribution has a mean of 50 and a standard deviation of 5.When comparing a score of 55 to this distribution of scores, the percentile rank is _____, whereas comparing a mean of 55, based on a sample of 10, to a distribution of means created from this parent population will result in a percentile rank of _____.
A) 1.00; 1.00
B) 1.00; 3.16
C) 3.16; 1.00
D) 50.50; 55.10

Question

Quizplus · Accepted Answer

The percentile rank of a score of 55 is 1.00, as it is one standard deviation above the mean. The percentile rank of a mean of 55, based on a sample of 10, is 3.16, as it is 1.6 standard deviations above the mean of the distribution of means.

A Given Distribution Has a Mean of 50 and a Standard