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: [85.011, -20.439, 195.195, 114.286]

Answer: 93.513


Question: [15.799, 6.545, 101.018, -76.074, 51.291, -58.732, 131.857, -36.93, 131.423]

Answer: 29.577


Question: [147.263, 61.676, 51.862]

Answer:
86.934


