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: [-65.295, 113.842, -82.683, 235.996, 143.686, 31.127, 135.386, 217.657, -87.331]

Answer: 71.376


Question: [161.683, 162.041, 187.429, -79.681, 60.809, 225.806]

Answer: 119.681


Question: [-50.998, 36.14, 100.028, -48.363, 234.622]

Answer:
54.286