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: [30.448, 132.545, 166.304, 202.59]

Answer: 132.972


Question: [21.953, -90.519, 92.624, 189.808, 130.57, -33.423, -16.126, 31.61, 119.582]

Answer: 49.564


Question: [-21.835, 226.946]

Answer:
102.556