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: [176.928, 146.579, 134.498, 146.776]

SOLUTION: 151.195

PROBLEM: [197.424, 44.178, 136.316, 246.48, 98.472, -31.327, 41.411]

SOLUTION: 104.708

PROBLEM: [221.436, 75.1, 120.569, 152.832, 233.433, 202.052, 66.384]

SOLUTION:
153.115