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:
[73.603, -84.154, 222.739, 205.594, 215.842]

Ex Output:
126.725


Ex Input:
[85.925, 218.341, -55.232, 136.11, 243.387, 98.158, 183.742, 85.875, 124.291, -95.213]

Ex Output:
102.538


Ex Input:
[8.265, -72.188, 183.366, 69.001, 225.978, 209.118, 124.714, 183.186]

Ex Output:

116.43