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: [-14.443, 90.675, 90.727, 170.548, 139.517, 72.499, 144.489, 89.078, 211.235, 75.32]

106.964