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: [228.031, -85.617, 36.164]

Answer: 59.526


Question: [125.332, 80.443]

Answer: 102.887


Question: [249.612, 59.432, 151.713, -95.154, 74.384, 4.004, -48.569]

Answer:
56.489