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.

[EX Q]: [-96.502, 12.006]
[EX A]: -42.248

[EX Q]: [216.087, 41.07, 213.683, 53.822, 31.214]
[EX A]: 111.175

[EX Q]: [-34.586, -48.018, -1.614, 177.925, -46.168, 130.596, -5.151, 139.407, -6.979]
[EX A]:
33.935