TASK 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.
PROBLEM: [-59.098, -22.489]

SOLUTION: -40.794

PROBLEM: [-68.429, 130.101, 45.673]

SOLUTION: 35.782

PROBLEM: [68.266, 67.672, 182.155, -73.28, -16.549, 25.442]

SOLUTION:
42.284