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: [84.091, 17.564, 58.169, 6.482, 53.256, 216.444, 171.489]

Answer: 86.785


Question: [57.402, -70.81, 234.332]

Answer:
73.641