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.

Q: [73.331, 85.459, 59.798, -35.019]

A: 45.892
****
Q: [139.238, 225.164, -21.563, -22.339, -77.136, 96.772, -40.208, 121.974, 228.852]

A: 72.306
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Q: [219.769, -36.26, 3.121, -22.5, 124.372]

A:
57.7
****