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]: [9.392, -80.549]
[A]: -35.579


[Q]: [-24.857, -28.799, 240.99]
[A]: 62.445


[Q]: [-17.38, 4.946, 217.485]
[A]:
68.35