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:
[14.818, 98.871, -79.033]

Ex Output:
11.552


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

Ex Output:
56.68


Ex Input:
[-46.614, -16.023, 223.487, -76.237, 181.105, 88.893, -71.628, -76.002, 45.858, 247.056]

Ex Output:

49.99