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: [54.715, 180.963, 239.308, 175.084, 147.044, 136.262, 184.009]

Answer: 159.626


Question: [71.91, 41.513]

Answer: 56.712


Question: [-59.161, -39.256, 87.516, -42.331, 126.613, 83.322, -70.322, 237.693, 86.413]

Answer:
45.61