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: [166.542, 216.326, 98.969, -96.779, 33.532]

SOLUTION: 83.718

PROBLEM: [-50.208, 248.001, -92.993, -67.867, -25.771, 57.557]

SOLUTION: 11.453

PROBLEM: [103.476, 245.818, -36.218, 121.299, 25.636, 57.621, 84.397, 98.277, 52.464]

SOLUTION:
83.641