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: [-1.31, 169.522, -26.172, 111.289]

Answer: 63.332


Question: [211.927, 190.941, -74.44, 7.991, -80.894, 48.291, 127.383, -51.774]

Answer: 47.428


Question: [38.767, 47.546, -35.98, 203.596, 49.705, 136.162, 189.591]

Answer:
89.912