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: [22.055, 33.53, 114.153, -38.531, -60.221, -34.133, -85.946, 171.323, 194.445]

35.186