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: [202.724, 129.438, -75.21, 114.102, 151.266]

SOLUTION: 104.464

PROBLEM: [103.885, 191.867, 82.228, 177.708, 136.093, -17.022]

SOLUTION: 112.46

PROBLEM: [141.059, 108.458]

SOLUTION:
124.758