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: [18.155, 114.069, 197.871, -99.696, 201.18]

Answer: 86.316


Question: [110.671, -22.006, 168.421, 152.718, 116.702, -26.669, -55.023, -72.932]

Answer: 46.485


Question: [-91.014, 66.004, -4.593, -92.968]

Answer:
-30.643