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: [149.527, 120.095, -18.877, -80.746, 84.564, 166.231, 29.327, -80.44]

46.21