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:
[-24.069, 49.942, -56.199, 147.337, 81.429, 198.62, -91.886, 33.842, -16.712, -51.661]

Ex Output:
27.064


Ex Input:
[211.927, 190.941, -74.44, 7.991, -80.894, 48.291, 127.383, -51.774]

Ex Output:
47.428


Ex Input:
[-61.032, 89.058, 53.196]

Ex Output:

27.074