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: [-41.085, 179.367, -47.961, 211.743, 242.631, 167.835, 165.969, 48.244]

115.843