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: [227.874, 175.626, 193.094, 63.963, 139.938]

SOLUTION: 160.099

PROBLEM: [-12.392, 57.854, 59.291, -18.155, -94.56, 94.214, -38.912]

SOLUTION: 6.763

PROBLEM: [174.309, -18.898, 212.555, 54.589, -70.15, 240.867, 61.917, -57.06]

SOLUTION:
74.766