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: [-96.502, 12.006]

Answer: -42.248


Question: [201.917, 240.159, 36.615]

Answer: 159.564


Question: [-42.615, 146.387, 78.253, 133.597]

Answer:
78.905