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: [-48.196, 15.566, 65.782, 174.566, -91.786, 52.379, 2.658, 76.856]

SOLUTION: 30.978

PROBLEM: [126.453, 169.516, 109.837, 208.695, 113.906, 56.894, 171.345, 126.81]

SOLUTION: 135.432

PROBLEM: [-13.411, 77.937, 17.74, 206.933, -30.457, -61.065, -64.628, 111.316, 133.259]

SOLUTION:
41.958