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1. |
Consider the data set 14, 18, 14, 14, 10, 29, 33, 31, 25. If you add 20 to each of the values, then |
A. | both mean and variance change |
B. | both mean and variance are unchanged |
C. | the mean is unchanged, variance changes |
D. | the mean changes, the variance is unchanged |
Answer» E. | |