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: [-64.713, 164.725, 116.739, -82.713, -93.628, 101.583, -14.634, 241.923, 156.284, 101.362]

62.693