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: [-72.554, 9.809, 27.09, 190.698]

Answer: 38.761


Question: [217.978, 70.977, 31.129, -87.408, -99.013, 249.862, -87.151, 207.527, 43.432]

Answer: 60.815


Question: [104.54, 70.777, 51.879, 161.253, 58.991, 177.564, -3.982, 115.444]

Answer:
92.058