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:
[194.964, 80.506, -41.268, 32.912, -21.6, 21.543, 69.269]

Ex Output:
48.047


Ex Input:
[-40.016, 117.495]

Ex Output:
38.74


Ex Input:
[225.51, 156.37, -14.789, 241.641, 54.02, -45.751]

Ex Output:

102.834