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: [-59.098, -22.489]

SOLUTION: -40.794

PROBLEM: [176.017, -45.57]

SOLUTION: 65.224

PROBLEM: [8.919, 109.327, -10.073, -95.031, -17.822, 51.269]

SOLUTION:
7.765