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: [70.485, 231.704, -98.046, -30.011, 80.665, 168.282, 224.41]

SOLUTION: 92.498

PROBLEM: [57.506, 172.357, 191.473, 131.849]

SOLUTION: 138.296

PROBLEM: [-38.447, 141.161, 244.787, 122.17, 18.835, 78.504, 30.742]

SOLUTION:
85.393