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: [20.538, 100.835, -23.197, 207.707, -12.758, 152.97, 190.404]

Answer: 90.928


Question: [9.828, 248.054, 20.871, 99.749, 52.797, -86.856, 65.438, 53.627]

Answer: 57.939


Question: [56.763, 184.052]

Answer:
120.408