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: [22.971, 146.947, 84.327, 123.65, -30.682, -43.973, 211.836, 146.398, -65.992]

Answer: 66.165


Question: [210.345, 91.115]

Answer: 150.73


Question: [17.002, 179.236, 60.396, 98.09]

Answer:
88.681