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: [82.439, -85.167, 100.665, -83.297]

SOLUTION: 3.66

PROBLEM: [-63.278, 115.92, 179.699, 73.157]

SOLUTION: 76.374

PROBLEM: [86.206, 195.457, 240.739, 94.806, -13.486, 78.413, -10.174]

SOLUTION:
95.994