Given the following distribution of test scores: 88,90,78,82,94,86,80,92,92,96,98. The score that best represents the mean of the distribution is:
A) 84.
B) 89.
C) 93.
D) 98.

Question

Quizplus · Accepted Answer

To find the mean of the distribution, we add up all the scores and divide by the total number of scores:

88+90+78+82+94+86+80+92+92+96+98 = 976

There are 11 scores, so the mean is 976/11 = 88.72.

However, none of the answer choices are very close to 88.72. Therefore, we look for the closest choice.

The closest choice to 88.72 is B) 89.

Given the Following Distribution of Test Scores: 88,90,78,82,94,86,80,92,92,96,98