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.

Input: Consider Input: [80.493, 235.968, -57.18, 38.066, -86.511, 193.785, 156.598, 45.139, 61.791, 141.607]

Output: 80.976


Input: Consider Input: [73.603, -84.154, 222.739, 205.594, 215.842]

Output: 126.725


Input: Consider Input: [28.183, 142.599, 154.348, 0.839, 53.995, -28.433, -90.398]


Output: 37.305