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: [17.002, 179.236, 60.396, 98.09]

SOLUTION: 88.681

PROBLEM: [75.879, 43.123]

SOLUTION: 59.501

PROBLEM: [235.155, 2.197, -31.301, 145.214, 119.032, 185.955]

SOLUTION:
109.375