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: [178.031, -52.967, 31.914, 174.681, 155.375, -3.831, 165.333, 10.246, -14.468]

SOLUTION: 71.59

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

SOLUTION: 37.373

PROBLEM: [186.794, 225.01, 106.067, -5.158, 5.493, 217.287, 122.049, -97.024]

SOLUTION:
95.065