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: [-32.03, 84.065, 91.512, 156.512, 78.808, 165.396, 176.764, 116.6]

104.703