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(Choose 1 answer)
Consider the following data as a sample.
(15, 15, 33, 17, 30, 30, 20, 60, 45, 15}
If each data value is increased by 8, what is the effect on the mean and standard deviation?
A. The standard deviation remains the same, but the mean increases by 8.
B. The mean remains the same, but the standard deviation increases by 64.
C. Both the mean and the standard deviation increase by 8.
D. Both the mean and the standard deviation remain the same.
