In this task you will be given a list of numbers and you need to find the mean (average) of that list. The mean of a list can be found by summing every number in the list then dividing the result by the size of that list. The output should be rounded to 3 decimal places.

[89.776, -37.895, -45.315, 75.805, 144.052, 150.156]
62.763

[-86.423, 157.154, 69.563, -67.516, 147.66, 216.018, 213.404]
92.837

[-15.843, 236.17, -79.922, -29.879]

27.632