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]: [34.678, 109.562]
[A]: 72.12


[Q]: [135.962, 136.509, 77.88, 148.448]
[A]: 124.7


[Q]: [54.252, 6.777, 90.081, 142.803]
[A]:
73.478