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: [57.506, 172.357, 191.473, 131.849]

A: 138.296
****
Q: [138.63, 106.759, 86.625]

A: 110.671
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Q: [149.527, 120.095, -18.877, -80.746, 84.564, 166.231, 29.327, -80.44]

A:
46.21
****