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.

Ex Input:
[82.992, 235.629, -36.094, -43.326, 27.531, -12.091, 212.495, 34.388]

Ex Output:
62.69


Ex Input:
[75.879, 43.123]

Ex Output:
59.501


Ex Input:
[10.497, -53.988, -76.283, 119.274, 180.003, 128.249, 95.859, 184.641, 80.298]

Ex Output:

74.283


