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: [-6.305, 138.079, 112.522, 52.257, -2.129]

Answer: 58.885


Question: [-82.27, 46.742, -60.547, 97.652, 121.66, 104.393, -43.603, 125.281, 42.318, 200.514]

Answer: 55.214


Question: [163.905, 170.242, 94.071, 50.277, 218.562, -99.48, 180.404, -95.86, -43.816]

Answer:
70.923