Question

Ari’s teacher says he may have his report grade based on either the mean or the median of his last six test scores. 88%, 73%, 97%, 76%, 90%, 80% Which measure of center would best represent Ari’s grade? the mean the median both the mean and the median neither the mean nor the median

Answer 1

There is no difference. Because the mean of Ari's tests equals his median score of his six tests. mean = 84% median = 84%

Explanation:

88%, 73%, 97%, 76%, 90%, 80%

organize by low to high

73%, 76%, 80%, 88%, 90%, 97%

The median here is (80 + 88)/2 = 84%

let us find the mean

mean = [73% + 76% + 80% + 88% + 90% + 97% ]/6

mean = 504/6 = 84%

There is no difference. Because the mean of Ari's tests equals his median score of his six tests. mean = 84% median = 84%