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: [75.248, 143.848, 158.987, 84.358, -71.023, 95.694, 201.945, 159.921]

106.122