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]: [21.531, 221.161, -31.194]
[A]: 70.499


[Q]: [48.462, -80.347, -19.649, 180.664, -24.117]
[A]: 21.003


[Q]: [69.468, 238.468, 129.245, 52.742, 124.256, 38.897, 7.2, 112.203]
[A]:
96.56