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: [201.917, 240.159, 36.615]

SOLUTION: 159.564

PROBLEM: [70.496, 183.122, 75.017, -19.287, 53.364, -12.389, 249.47, -88.484, 249.98, 35.226]

SOLUTION: 79.652

PROBLEM: [181.727, -84.77, 104.286, 137.156, 108.769, 42.211, -49.786, -57.224]

SOLUTION:
47.796