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: [117.561, 50.858, 44.98, -8.855, 195.439, 229.462, 41.973, 141.443]

101.608