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]: [211.292, 92.275, 128.423, 242.327, -54.053, 89.501, 64.784]
[A]: 110.65

[Q]: [207.804, 175.122, 13.63, 217.625, -98.484]
[A]: 103.139

[Q]: [-3.836, 37.067, -16.403, 208.203, 178.783, 5.204, 83.722, 39.753, 19.525]
[A]:
61.335