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: [41.212, 221.072, 226.666, 3.688, 180.239, 142.767, 184.012, 63.249]

132.863