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: [36.34, -16.727, 140.541, 127.454, -94.11, -74.52, 96.179, -9.121, -65.54]

SOLUTION: 15.611

PROBLEM: [248.023, 57.595, -73.013, 200.246, 142.738, -70.94, -43.129, -7.477, 200.087, 6.452]

SOLUTION: 66.058

PROBLEM: [-8.495, 176.723, -90.879, -91.41, 174.707, -27.129, 165.359]

SOLUTION:
42.697