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: [-82.094, 163.171, -35.384, 69.572]

SOLUTION: 28.816

PROBLEM: [30.224, 63.76, 96.876, 149.052, -38.974, 48.35, 133.493, 142.787, 10.958]

SOLUTION: 70.725

PROBLEM: [91.045, 234.572, 89.422, 184.631, 30.183, 51.847, -52.049, -69.077, 108.626, 106.619]

SOLUTION:
77.582