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:
[121.069, 12.661, 159.825, -39.645, 6.609, 156.735, 110.054, 112.875]

Ex Output:
80.023


Ex Input:
[95.472, 109.291, 245.955, 86.122, -90.639, 144.544, 31.063, 89.001, 40.671]

Ex Output:
83.498


Ex Input:
[-93.463, 79.59, -60.334, 47.109, 201.859, 48.991, 100.758, -60.493, 52.614, 186.306]

Ex Output:

50.294