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: [-18.796, 194.818]

Answer: 88.011


Question: [91.408, 178.508, 77.081, 13.419, 185.372, 158.828]

Answer: 117.436


Question: [134.284, -70.923, 136.75, 32.831, 54.132]

Answer:
57.415