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: [-60.041, -56.779, 6.2, 73.114, 137.319]

Answer: 19.963


Question: [182.441, 58.468, 209.229, 249.908, 32.346, 30.442]

Answer: 127.139


Question: [15.393, 241.112, -37.085, 72.85, -14.157, 77.763, -4.316, 223.701, -87.316]

Answer:
54.216