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: [-42.207, -46.667, 171.095]

Answer: 27.407


Question: [123.511, 37.811, 249.595, -25.324]

Answer: 96.398


Question: [-62.667, 70.273, -14.332, 65.006, -22.429, 180.931, -22.908, 158.395, -27.315, 154.473]

Answer:
47.943