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]: [-19.26, 130.53, 225.367, 179.475, -63.39]
[A]: 90.544


[Q]: [-15.843, 236.17, -79.922, -29.879]
[A]: 27.632


[Q]: [-42.36, -36.434, 129.626]
[A]:
16.944