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: [-92.0, 108.814, 164.207, 94.26, 33.74]

SOLUTION: 61.804

PROBLEM: [126.136, -23.429, -25.125, -32.203, 36.405, 44.406, 147.828, -97.708, -69.793, 235.046]

SOLUTION: 34.156

PROBLEM: [7.952, -99.35, -39.161]

SOLUTION:
-43.52