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:
[79.978, -44.051, 200.217, 142.486, -89.194, 55.999, 165.078, -3.615, 0.12, -44.323]

Ex Output:
46.27


Ex Input:
[93.433, 148.366, 19.269]

Ex Output:
87.023


Ex Input:
[185.805, 8.01, 151.056, 35.572, 51.884, 217.1, -0.547, 8.171]

Ex Output:

82.131