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: [-71.745, -18.239, 214.837, -22.915, 180.841, -4.641]

SOLUTION: 46.356

PROBLEM: [116.268, 173.27, 228.827, 52.695, 66.445, -34.051, 152.137]

SOLUTION: 107.942

PROBLEM: [64.516, 201.858, -76.774, -11.075, 163.238, -61.779, -96.051]

SOLUTION:
26.276