# Effects of shifting, adding, & removing a data point

### Problem

Brandon works at a small petting zoo with 8 animals. He was looking at some data showing the masses of the animals. Each animal had a different mass between 2 and 160, space, k, g. The zoo then buys a horse that weighs 900, space, k, g as their 9, start superscript, t, h, end superscript animal.
AnimalWeight (in kilograms)
chicken2
duck3
goose5
barn cat7
dog27
goat36
lamb45
pig160
horse900
How does buying the horse affect the mean and median?