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: [80.285, 75.631, 5.715, -68.695, 134.225, 22.744, 63.203, 136.862, 60.995]

SOLUTION: 56.774

PROBLEM: [201.917, 240.159, 36.615]

SOLUTION: 159.564

PROBLEM: [-26.183, 53.059, 40.287, 243.387, 22.271, 21.177, 45.84, 77.377, 7.971, 119.368]

SOLUTION:
60.455