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: [-51.625, 100.25, -75.262, -53.896]

Answer: -20.133


Question: [-71.118, 160.927, 230.116, -26.655, -4.297, 64.272, 72.304, 41.517, 242.068]

Answer: 78.793


Question: [37.089, 158.917, 113.57]

Answer:
103.192