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:
[102.553, 221.594, -69.406, 192.534, 139.703, -38.208, 228.963, 32.921]

Ex Output:
101.332


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

Ex Output:
47.428


Ex Input:
[210.345, 91.115]

Ex Output:

150.73