You would borrow one from the four as you can’t do 2 - 4 which would then get you 7/5 - 4/5 which is 3/5. Then since you borrowed one from the four, it would become 3. Therefore, you would minus 3 - 2 and 7/5 - 4/5 which is
The data are bunched towards the higher values above the mean, but spread out to values below the mean. Therefore the median provides a better description of the center.
