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: [1.222, 33.339, 163.969]

Answer: 66.177


Question: [230.375, -45.327, 112.137, 109.305]

Answer: 101.622


Question: [-25.603, 134.053]

Answer:
54.225