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: [-28.982, -63.182, 22.408, 30.425, 125.743, 16.816, 96.711, 215.027, 32.552]

SOLUTION: 49.724

PROBLEM: [22.971, 146.947, 84.327, 123.65, -30.682, -43.973, 211.836, 146.398, -65.992]

SOLUTION: 66.165

PROBLEM: [112.026, 20.03, 73.595, -24.957, 185.718, 36.43, 206.024]

SOLUTION:
86.981

