13) Mr Thompson's math class averaged poorly on a test, so he gave them a retest. Ti
On the retest, 10 students gained 10 points each, 10 students lost 10 points each
How does the MEAN of the retest scores compare to the MEAN of the scores on th
A)
The means are the same.
B)
The mean on the retest is 3 points higher.
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0)
The mean on the retest is 10 points higher.
The mean on the retest is 13 points higher.