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]: [-40.509, 201.39]
[EX A]: 80.44

[EX Q]: [213.149, 184.894, -93.544, 195.043, 78.738, 229.09, 220.609, 80.079, 7.498]
[EX A]: 123.951

[EX Q]: [52.095, 42.225, 104.656, 225.405, -48.308, 23.468]
[EX A]:
66.59