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: [184.477, 178.133, 206.128, 148.349, 50.82, 33.624, 196.968, 179.804]

Answer: 147.288


Question: [-20.155, -42.404]

Answer: -31.28


Question: [8.497, -25.504, -73.589]

Answer:
-30.199