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: [74.601, 131.018, -45.91]

Answer: 53.236


Question: [93.405, -31.061]

Answer: 31.172


Question: [9.392, -80.549]

Answer:
-35.579