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: [112.391, 88.953, 98.97, 169.876, 129.441, 17.813, 119.358, 81.437, -25.988, 144.415]

93.667