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: [-29.727, 150.587, -28.344, 181.096, 0.275, -91.658, 169.609, -21.106, 153.48]

Answer: 53.801


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

Answer: 147.288


Question: [-69.847, -90.337, 2.662, 218.155, 223.773]

Answer:
56.881