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]: [-67.542, 65.934, 223.305, 25.694, 159.037]
[EX A]: 81.286

[EX Q]: [49.035, -81.115, 27.419]
[EX A]: -1.554

[EX Q]: [59.291, 108.572, 120.13]
[EX A]:
95.998