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]: [65.591, -56.104, -28.389, -22.521]
[A]: -10.356


[Q]: [84.091, 17.564, 58.169, 6.482, 53.256, 216.444, 171.489]
[A]: 86.785


[Q]: [86.277, 221.081]
[A]:
153.679