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

SOLUTION: 71.376

PROBLEM: [234.272, 196.413, -92.425]

SOLUTION: 112.753

PROBLEM: [101.494, -63.035, 144.277, 238.803]

SOLUTION:
105.385

