If we add the outlier shown at 1, which statement describes the effect the outlier will have on the mean and median of this data set?

The outlier has a greater effect on the mean than the median.

Explanation: The mean is calculated by averaging all the values in a data set, so extreme values (outliers) can significantly skew this average. On the other hand, the median, which is the middle value when the data is sorted, is much less affected by outliers. Therefore, adding an outlier will usually increase the mean more than it will affect the median.