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:
[15.748, -13.369, -79.943, -2.78, 169.174, 101.44, -84.923, 189.589, 83.541, -37.629]

Ex Output:
34.085


Ex Input:
[96.706, 239.918, 73.299, 68.184, 233.512, -76.407]

Ex Output:
105.869


Ex Input:
[195.092, 151.243, -65.513, 55.009, -76.715, 113.276, 233.246, -91.18, -2.125]

Ex Output:

56.926