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:
[-7.057, 122.729, -78.932, 52.502, 191.819, 80.994, 29.505, -10.501]

Ex Output:
47.632


Ex Input:
[75.879, 43.123]

Ex Output:
59.501


Ex Input:
[-70.155, 115.467, 175.376, 98.532, 15.688, -34.377, -38.563]

Ex Output:

37.424