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:
[-48.12, 192.63, 32.454, 132.703, -26.044, 140.006, -8.624, 38.438]

Ex Output:
56.68


Ex Input:
[165.242, 50.738, -34.087, 77.742, -21.241, -4.541]

Ex Output:
38.976


Ex Input:
[127.829, 9.672, -71.613, 86.286, 6.641]

Ex Output:

31.763