1.

The mean of 100 observations is 50 and the standard deviation is 10. If 5 is subtracted from each observation and then it is divided by 4, then what will be the new mean and the new standard deviation respectively?

A. 45, 5
B. 11.25, 1.25
C. 11.25, 2.5
D. 12.5, 2.5
Answer» D. 12.5, 2.5


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