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: [98.834, 143.231, 35.995, -64.696]

SOLUTION: 53.341

PROBLEM: [-50.208, 248.001, -92.993, -67.867, -25.771, 57.557]

SOLUTION: 11.453

PROBLEM: [-80.526, 128.72]

SOLUTION:
24.097