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]: [75.879, 43.123]
[EX A]: 59.501

[EX Q]: [159.381, -84.046]
[EX A]: 37.668

[EX Q]: [9.736, 70.464, 232.675]
[EX A]:
104.292