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: [176.017, -45.57]

SOLUTION: 65.224

PROBLEM: [126.136, -23.429, -25.125, -32.203, 36.405, 44.406, 147.828, -97.708, -69.793, 235.046]

SOLUTION: 34.156

PROBLEM: [207.449, 85.584, -55.048, -10.53, 30.755]

SOLUTION:
51.642