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]: [-94.068, -52.758, 53.31, -5.178, -20.667, 100.51, 100.973, 168.318, 54.245, 210.951]
[EX A]: 51.564

[EX Q]: [29.292, 193.26, -48.646]
[EX A]: 57.969

[EX Q]: [198.488, -82.309, 221.856, -62.11, -56.522, 179.093, 187.819, 146.271, 38.546]
[EX A]:
85.681