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:
[233.848, -58.713, 126.623, 27.615, 62.365, 200.239, 13.38]

Ex Output:
86.48


Ex Input:
[128.152, 95.16, 70.113, -16.853]

Ex Output:
69.143


Ex Input:
[-86.657, 29.121, 121.634, -87.296, 115.09, 57.714, -30.534, 201.717, -93.628, -0.801]

Ex Output:

22.636