Sydney’s teacher says she may have her report card percentage based on either the mean or the median and she can drop one test score if she chooses.

94%, 84%, 100%, 68%

which measure of center should sydney choose so she can have the highest percentage possible?

answer choice
a. sydney should choose the mean after dropping one test score.
b. sydney should choose the mean without dropping one test score.
c. sydney should choose the median after dropping one test score.
d. sydney should choose the median without dropping one test score.

Step-by-step explanation:

Given are 4 scores as

94, 84,100,68

Minimum: 68

Quartile Q1: 76

Median: 89

Quartile Q3: 97

IQR =97-76 =21

Maximum: 100

Outlier = median ±1.5 IQR

=(89-31.5,89+31.5)

=(67.5,120.5)

/since all entries lie within this there is no outlier

No need to drop one test score

Mean =86.5

But to get high score 94,84,100 can be considered

Mean = 92.67%

Median =94%

Hence C.Sydney should choose the median after dropping one test score.

gregory's graph is incorrect because it shows 2 inches of growth for each week when it should show 0.75 inches of growth each week.