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: [122.737, 189.477, -4.853, 150.031, 126.296, 240.809, 204.743, 29.178]

SOLUTION: 132.302

PROBLEM: [-4.969, 232.548, 81.586, 13.448, -85.528, -1.661, -76.971]

SOLUTION: 22.636

PROBLEM: [214.433, 229.507, 126.45, 124.396, -41.413, 43.572, 165.134]

SOLUTION:
123.154