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:
[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:
[-17.106, 23.8, -54.195, 233.82, -99.732, -68.488, 215.616]

Ex Output:
33.388


Ex Input:
[238.279, 94.049, 239.727, 233.086, 169.93, 181.465]

Ex Output:

192.756