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: [212.456, 6.972, -59.399, -83.342, 215.038, -97.851]

Answer: 32.312


Question: [80.346, 228.37, 18.978, -42.02]

Answer: 71.419


Question: [173.213, -0.905, 201.343, 44.316, 61.99, 78.612, 178.193]

Answer:
105.252