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: [-38.715, 205.647, 66.034, 49.8, -92.051, 111.017, 149.689]

Answer: 64.489


Question: [230.375, -45.327, 112.137, 109.305]

Answer: 101.622


Question: [30.431, -25.099, 119.724, 154.511, 38.206]

Answer:
63.555