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:
[112.026, 20.03, 73.595, -24.957, 185.718, 36.43, 206.024]

Ex Output:
86.981


Ex Input:
[48.122, -2.158, 12.547, -39.257, -62.936, 120.37, 133.697, 68.132, 93.801]

Ex Output:
41.369


Ex Input:
[-48.286, 144.173, 76.972, 209.251, -76.306]

Ex Output:

61.161