A teacher collects test scores from five students: 12, 15, 14, 13, and 16. Later, a sixth student's score of 20 is added to form a new data set. Which choice correctly describes how the mean of the original scores compares to the mean of the new scores?
The mean of the original data set is greater than the mean of the new data set.
The mean of the original data set is less than the mean of the new data set.
The means of both data sets are equal.
There is not enough information to compare the means.
