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: [226.287, 114.252, -53.47, 8.606, 234.708, -31.872, 163.615]

SOLUTION: 94.589

PROBLEM: [217.978, 70.977, 31.129, -87.408, -99.013, 249.862, -87.151, 207.527, 43.432]

SOLUTION: 60.815

PROBLEM: [153.298, -53.776, 85.23, 13.852]

SOLUTION:
49.651