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: [211.927, 190.941, -74.44, 7.991, -80.894, 48.291, 127.383, -51.774]

SOLUTION: 47.428

PROBLEM: [74.601, 131.018, -45.91]

SOLUTION: 53.236

PROBLEM: [-58.728, -72.265, -14.881, -52.66, 154.535, 121.833, -39.542]

SOLUTION:
5.47