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: [88.806, -71.43, -61.274, -33.608, 93.919, 2.689, 28.44, 212.039, 182.083, 110.978]

55.264