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: [219.428, 229.08, 24.616, -83.165, -28.839, 195.219, 170.491, -78.673]

SOLUTION: 81.02

PROBLEM: [97.816, -78.424]

SOLUTION: 9.696

PROBLEM: [201.251, 30.491, 63.488, 124.478, 121.544, 158.625, 84.453]

SOLUTION:
112.047