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: [11.201, 61.764, 233.187, 180.546, 49.548, 150.766, -23.583, 226.0, 158.703, 33.624]

108.176