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: [159.291, 160.61, -50.992, 34.053, 78.883, 222.627, 105.95]

SOLUTION: 101.489

PROBLEM: [-63.278, 115.92, 179.699, 73.157]

SOLUTION: 76.374

PROBLEM: [73.637, 249.719, 215.144, 221.034, -6.774, 15.96, -72.507, -15.652]

SOLUTION:
85.07