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:
[-8.87, 232.908, 141.714, -47.559, 161.192, 203.441]

Ex Output:
113.804


Ex Input:
[128.472, 149.361, 71.023, -96.651]

Ex Output:
63.051


Ex Input:
[79.389, 200.554, 117.958, 187.917, 81.134, 161.246, 52.29, 37.586]

Ex Output:

114.759