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: [224.131, -2.975, 101.116, 127.048, -67.279, -25.825, 136.475, -51.855, 117.178, 219.264]

SOLUTION: 77.728

PROBLEM: [237.501, 67.08, 13.857]

SOLUTION: 106.146

PROBLEM: [-77.705, 141.542, 119.674, -41.002, -51.183, -73.05, -46.322, 79.157, -19.117]

SOLUTION:
3.555