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: [59.251, 198.593]

Answer: 128.922


Question: [-40.016, 117.495]

Answer: 38.74


Question: [181.293, -4.205, -58.6, 218.035, 90.889, 179.566, -18.358, 10.877, 113.731]

Answer:
79.248