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: [245.091, 201.984, 204.428, 222.046, 4.807, 21.497, -34.025, 160.097]

SOLUTION: 128.241

PROBLEM: [138.526, 60.81, 233.845, -33.602, 189.784, 13.888, 184.543, 53.635, 18.299, -87.132]

SOLUTION: 77.26

PROBLEM: [110.249, 157.344, 198.65, 107.833, -2.52, 134.604, 57.996, -77.682, 214.709]

SOLUTION:
100.131