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: [-20.702, 4.455, 37.838, 102.751, 231.6, -23.075, 236.527, 227.109, 171.708, 46.239]

SOLUTION: 101.445

PROBLEM: [-67.542, 65.934, 223.305, 25.694, 159.037]

SOLUTION: 81.286

PROBLEM: [177.435, 227.721, 3.771, 62.398, -50.349, 215.672, 97.194]

SOLUTION:
104.835