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: [-63.278, 115.92, 179.699, 73.157]

SOLUTION: 76.374

PROBLEM: [218.46, 7.937, 155.624, 82.813, 93.516]

SOLUTION: 111.67

PROBLEM: [235.852, 239.613, 36.641, 176.324, -3.967, -16.048, -58.742, 167.568, 61.939, 174.222]

SOLUTION:
101.34