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: [185.594, 89.215, 19.941, 23.299, 47.251]

SOLUTION: 73.06

PROBLEM: [20.538, 100.835, -23.197, 207.707, -12.758, 152.97, 190.404]

SOLUTION: 90.928

PROBLEM: [12.545, -38.654]

SOLUTION:
-13.054