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: [205.128, 198.475, 132.445, -88.455, 2.802, 142.99, 232.583, 58.071]

110.505