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: [-15.843, 236.17, -79.922, -29.879]

SOLUTION: 27.632

PROBLEM: [206.606, -76.103, -16.863, 44.126, 4.019, 15.088]

SOLUTION: 29.479

PROBLEM: [203.204, 8.018]

SOLUTION:
105.611