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: [-56.201, -77.67, -75.53, -51.92, 146.416, 141.525]

Answer: 4.437


Question: [136.816, 121.886, 38.032, 81.322, -0.781, 112.95, 49.478, 219.21, -42.397]

Answer: 79.613


Question: [162.923, -68.086, 67.963]

Answer:
54.267