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: [128.152, 95.16, 70.113, -16.853]

Answer: 69.143


Question: [-57.838, -63.616, 49.646, -45.262, 73.1, -82.399, 47.168]

Answer: -11.314


Question: [26.143, 91.447, 232.728, 166.034, 141.099, -19.491]

Answer:
106.327


