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: [-53.388, 31.309, 19.079, -16.926, 242.421, 210.599]

Answer: 72.182


Question: [-24.857, -28.799, 240.99]

Answer: 62.445


Question: [-3.009, 219.509]

Answer:
108.25