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: [217.523, 92.701, -55.65, -89.359, 55.742, 158.634, -31.883, 206.554]

Answer: 69.283


Question: [199.874, -45.634, -39.343, 75.985, 143.35, 87.15, 120.645, -34.636, 159.567]

Answer: 74.106


Question: [-92.0, 108.814, 164.207, 94.26, 33.74]

Answer:
61.804


