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: [128.328, 20.497, 96.178, 237.663, 80.568, 109.722]

Answer: 112.159


Question: [73.331, 85.459, 59.798, -35.019]

Answer: 45.892


Question: [-91.322, 112.331, 179.888, -42.366, 92.384, 96.908, 78.247, 243.896]

Answer:
83.746