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: [12.155, 204.528, 85.84, 66.186]

Answer: 92.177


Question: [-41.714, 218.588, 49.769, 142.519, 179.776, -99.226, 224.69, 191.642]

Answer: 108.256


Question: [-40.93, -66.459, 224.153, 188.382]

Answer:
76.286