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: [26.145, -44.254, 127.581, 162.122, 82.003, 143.809, 96.47, 34.362, 71.469]

SOLUTION: 77.745

PROBLEM: [-65.295, 113.842, -82.683, 235.996, 143.686, 31.127, 135.386, 217.657, -87.331]

SOLUTION: 71.376

PROBLEM: [-18.718, -36.75, 183.634, -16.734, 37.792, -30.623, 232.558, -78.37, 204.322]

SOLUTION:
53.012