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: [204.235, -53.675, 201.303, 20.869]

SOLUTION: 93.183

PROBLEM: [194.964, 80.506, -41.268, 32.912, -21.6, 21.543, 69.269]

SOLUTION: 48.047

PROBLEM: [151.685, 172.203]

SOLUTION:
161.944