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: [61.739, -99.854, -53.677]

SOLUTION: -30.597

PROBLEM: [11.642, -39.595, 23.351, 168.447, 244.85, 108.958, 80.422, -14.774, 138.977]

SOLUTION: 80.253

PROBLEM: [-8.175, 70.223, -54.646, 6.612, 198.024, 73.148]

SOLUTION:
47.531