What happens to the mean of the data set shown below if the number 3 is added to the data set? A. The mean increases by 2. B. The mean does not change. C. The mean decreases by 0.25. D. The mean increases by 1.

What happens to the mean of the data set shown below if the number 3 is added to the data set A The mean increases by 2 B The mean does not change C The mean de class=