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: [109.74, 169.0, 195.864, -1.043, 51.968, -56.564, 214.711, -78.61, 212.459, 228.74]

SOLUTION: 104.626

PROBLEM: [219.769, -36.26, 3.121, -22.5, 124.372]

SOLUTION: 57.7

PROBLEM: [-33.638, 167.312, 61.383, 74.245, 50.682]

SOLUTION:
63.997