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: [139.608, 17.516, 100.5, -51.362, 57.462, -77.569, -95.41, -24.339, -96.579]

Answer: -3.353


Question: [-69.826, -59.771, 206.945, 70.077, 87.967, 194.501]

Answer:
71.649