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: [192.529, -67.249, 123.707, 41.987, 11.587, 202.189, 12.989]

Answer: 73.963


Question: [87.234, -30.861, 221.46, 120.15, -85.065, 67.024, 144.174, -64.546]

Answer: 57.446


Question: [29.811, 138.926, 3.158, 225.166, 71.684, -60.198, 21.399]

Answer:
61.421