QUESTION 9 OF 11
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Mr. Battles raised all of his students' scores on a recent exam by 5 points. What effect did this
have on the mean and standard deviation of the scores?
The mean increased by 5 points, but the standard deviation remained the
same.
The mean remained the same, but the standard deviation increased by 5
points.
Both the mean and standard deviation increased by 5 points.
D
Both the mean and standard deviation remained the same.
Ε
I would be guessing.