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: [199.153, 182.13, -7.832, -60.259]

SOLUTION: 78.298

PROBLEM: [196.683, 97.538, 247.799, 203.036, 203.369, -15.737]

SOLUTION: 155.448

PROBLEM: [-98.681, 205.519, 30.121, 8.145]

SOLUTION:
36.276