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: [152.683, 147.968, 62.877, -44.254, 4.344]

SOLUTION: 64.724

PROBLEM: [-40.079, 236.153, -31.732, 249.775, 92.304, -73.536, 95.181]

SOLUTION:
75.438