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: [-32.557, -70.922, 191.786, 244.222]

SOLUTION: 83.132

PROBLEM: [88.755, -64.951, 41.008]

SOLUTION: 21.604

PROBLEM: [131.335, 125.26, -38.354]

SOLUTION:
72.747