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: [-47.853, 183.65, -32.707, 97.232, 211.586, 27.315, 185.06, 238.692]

107.872