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]: [58.371, 4.131]
[A]: 31.251


[Q]: [84.527, 159.538, -20.208, 42.181, -12.587, -86.549, 131.349, 63.615, 150.304]
[A]: 56.908


[Q]: [-85.469, -13.4, 204.437, 105.267, -65.813, 21.201, -13.486]
[A]:
21.82