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

Answer: 58.328


Question: [-31.241, 73.981, 127.71, 166.275, 35.028, -10.432]

Answer: 60.22


Question: [65.697, -66.629, -85.477, 153.044]

Answer:
16.659