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:
[232.014, -52.265]

Ex Output:
89.875


Ex Input:
[-75.664, 192.225, 2.107, -86.22, -51.11]

Ex Output:
-3.732


Ex Input:
[-94.756, 53.245, 226.287, -86.689, 63.893, 43.674]

Ex Output:

34.276