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.

[36.34, -16.727, 140.541, 127.454, -94.11, -74.52, 96.179, -9.121, -65.54]
15.611

[193.91, 159.502, 226.363, 152.723, 47.512, 74.563, 40.762, -60.456, 87.324, 80.779]
100.298

[28.856, -75.471, 62.622, 212.135, -44.995, 212.972, 12.709, 3.732, 120.603]

59.24

