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: [70.553, 193.054, 166.173, 115.812]

SOLUTION: 136.398

PROBLEM: [223.955, 41.858, -54.86, 8.742, 110.448]

SOLUTION: 66.029

PROBLEM: [-80.409, 65.193, 241.323, 223.168, 50.86, 200.184]

SOLUTION:
116.72