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: [243.697, 165.796, 114.518, 207.298, 191.227]

SOLUTION: 184.507

PROBLEM: [204.235, -53.675, 201.303, 20.869]

SOLUTION: 93.183

PROBLEM: [153.482, 150.917]

SOLUTION:
152.2