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.

[-81.517, 126.001, 203.19, 236.819, 36.037, 152.691, -1.444, -37.296]
79.31

[25.58, 99.319, 165.429]
96.776

[-74.608, 60.988, -9.325, 141.676, 54.84]

34.714