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: [-57.838, -63.616, 49.646, -45.262, 73.1, -82.399, 47.168]

Answer: -11.314


Question: [208.678, 219.921, 113.318, 23.83, -42.88, -32.702, -36.191, 117.84, 91.988]

Answer: 73.756


Question: [93.433, 148.366, 19.269]

Answer:
87.023