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:
[79.978, -44.051, 200.217, 142.486, -89.194, 55.999, 165.078, -3.615, 0.12, -44.323]

Ex Output:
46.27


Ex Input:
[113.021, 101.946, -14.79, -8.555, -59.095, -74.169, 80.193, 157.87, 26.321, -19.87]

Ex Output:
30.287


Ex Input:
[21.568, -27.435, -51.543, -81.878, -35.834, 219.543, 203.308]

Ex Output:

35.39