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]: [-40.246, -7.512, 174.245, -98.6]
[A]: 6.972


[Q]: [147.664, 167.561, 244.106, -42.988, 9.425, 79.806, 239.58]
[A]: 120.736


[Q]: [-75.075, 22.238, -90.64, 238.928]
[A]:
23.863