Definition: 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: [-73.206, -14.222, 133.004, 204.681, 178.571, -87.802, -22.102, 14.535]

41.682