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.
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Question: [213.2, 159.287, 214.859, 189.464, 185.706, -85.847, 215.647, 8.545]

Answer: 137.608


Question: [2.81, 52.99, 55.279, 75.682, 73.835, 148.077, -54.162, 112.112]

Answer: 58.328


Question: [-63.535, -60.035, 158.784, 54.581, 85.296]

Answer:
35.018