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.

[39.88, 58.489, 225.343, 105.008, 210.581, 35.577]
112.48

[165.242, 50.738, -34.087, 77.742, -21.241, -4.541]
38.976

[65.268, -49.952, -59.449, 161.602, 223.231, -87.708, 43.299, 237.731]

66.753