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: [79.389, 200.554, 117.958, 187.917, 81.134, 161.246, 52.29, 37.586]

114.759