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: [159.381, -84.046]

SOLUTION: 37.668

PROBLEM: [-98.361, -84.91]

SOLUTION: -91.636

PROBLEM: [-57.799, 197.667, 34.767, 50.625, 74.938, 26.508, 195.054, 29.311, 208.064, 33.079]

SOLUTION:
79.221