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: [182.34, 105.105, 248.658, 104.174, -98.917, -47.707, -61.048, 241.903, -34.659, 31.89]

SOLUTION: 67.174

PROBLEM: [201.917, 240.159, 36.615]

SOLUTION: 159.564

PROBLEM: [140.396, 51.9, -18.529, -74.292, 178.89, 197.292, 45.61, -29.629, 25.63]

SOLUTION:
57.474