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]: [136.816, 121.886, 38.032, 81.322, -0.781, 112.95, 49.478, 219.21, -42.397]
[A]: 79.613


[Q]: [233.84, -38.337, 10.341, 195.901, 68.586, 214.429, 213.823, 88.799]
[A]: 123.423


[Q]: [12.362, 69.938, -46.662, -71.788]
[A]:
-9.038