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: [112.53, -67.079, 177.313, 230.482, 57.316, -37.564]

SOLUTION: 78.833

PROBLEM: [57.478, 212.225, -90.816, -10.092, 238.514, 60.36, 59.627]

SOLUTION: 75.328

PROBLEM: [43.714, 132.938, 51.464, 16.47, -5.263]

SOLUTION:
47.865