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: [-84.771, 60.727, 165.566, 27.782, 159.929, 167.451, -64.15]

SOLUTION: 61.791

PROBLEM: [217.523, 92.701, -55.65, -89.359, 55.742, 158.634, -31.883, 206.554]

SOLUTION: 69.283

PROBLEM: [93.389, 53.887, 109.59]

SOLUTION:
85.622