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: [191.996, -86.097, 81.958, -22.864, 102.176, 41.523, 222.055, 2.513, 184.656, -50.416]

SOLUTION: 66.75

PROBLEM: [135.807, 205.755, 191.805]

SOLUTION: 177.789

PROBLEM: [223.058, 69.404, 191.216]

SOLUTION:
161.226