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: [222.94, 54.014, 232.208, -16.089, 214.915, 2.232]

SOLUTION: 118.37

PROBLEM: [75.879, 43.123]

SOLUTION: 59.501

PROBLEM: [37.853, 78.283, 143.128, 82.561, 181.661, -89.154, 50.037]

SOLUTION:
69.196