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: [-19.26, 130.53, 225.367, 179.475, -63.39]

Answer: 90.544


Question: [184.51, 79.649, 31.606, -65.279, 1.231]

Answer: 46.343


Question: [170.513, 92.657, -8.474, 126.75, 115.476, 75.692, 249.135, 86.047]

Answer:
113.474