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: [-19.26, 130.53, 225.367, 179.475, -63.39]

SOLUTION: 90.544

PROBLEM: [131.164, 99.999, 138.488, 57.264, -40.069, -82.402, -42.836]

SOLUTION: 37.373

PROBLEM: [-4.749, 102.787, -45.229, 184.111, 221.888, 22.727, 20.887, 34.094]

SOLUTION:
67.065