Write a data set where both the mean and the median describe the data equally well.

The data set that can use the mean or the median as a measure of center would be a set of numbers that is symmetric. This means there are about the same exact same distribution of numbers on either side of the middle number.

Ex: 2, 3, 3, 4, 5, 5, 6

Mean: 28/7 = 4

Median: 4