The mean and the median of a set of data are 25 and 28 respectively. These values indicated that this set of data is skewed to the
left.
To determine whether a set of data is skewed to the left or right, we need to compare the mean and the median.
If the mean is less than the median, the data set is considered to be skewed to the left (or negatively skewed).
If the mean is greater than the median, the data set is considered to be skewed to the right (or positively skewed).
In this case, the mean is 25 and the median is 28.
Since the mean is less than the median (25 < 28), the data set is skewed to the left (negatively skewed).