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: [-58.447, 213.433, 187.859, 103.704]

Answer: 111.637


Question: [125.332, 80.443]

Answer: 102.887


Question: [-50.144, 0.802]

Answer:
-24.671