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: [93.72, 13.366, -44.452, -29.011, 56.593, 5.272, -20.162, 160.282, 44.017]

SOLUTION: 31.069

PROBLEM: [138.63, 106.759, 86.625]

SOLUTION: 110.671

PROBLEM: [225.962, -72.89, -78.365, 30.723, 3.536]

SOLUTION:
21.793