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: [-51.127, -53.399, -58.094, 172.367, -29.286, 109.468, -34.858, -99.953, 9.617, -8.063]

SOLUTION: -4.333

PROBLEM: [202.411, 127.775, 165.721, -41.545, 113.127, 229.974, 111.13, 208.686, 92.744, 36.522]

SOLUTION: 124.654

PROBLEM: [218.215, -1.599, 5.707, 35.978, 121.048]

SOLUTION:
75.87