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:
[245.091, 201.984, 204.428, 222.046, 4.807, 21.497, -34.025, 160.097]

Ex Output:
128.241


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

Ex Output:
-3.732


Ex Input:
[-8.987, 188.004, 159.267, 3.426, 90.685, 181.514, 214.063, 14.6]

Ex Output:

105.321