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: [-19.769, 147.929, -36.133, 201.287, 28.528, -6.089, 122.533, 127.892, -36.662]

SOLUTION: 58.835

PROBLEM: [93.72, 13.366, -44.452, -29.011, 56.593, 5.272, -20.162, 160.282, 44.017]

SOLUTION: 31.069

PROBLEM: [147.279, 157.326, 249.244, 166.429, 120.856, 238.448, 95.46]

SOLUTION:
167.863