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: [231.057, 71.527, 201.799, -5.17, -14.963, -35.693]

SOLUTION: 74.76

PROBLEM: [-40.509, 201.39]

SOLUTION: 80.44

PROBLEM: [43.535, 176.721, 201.185, 157.759, 36.826]

SOLUTION:
123.205