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]: [193.91, 159.502, 226.363, 152.723, 47.512, 74.563, 40.762, -60.456, 87.324, 80.779]
[EX A]: 100.298

[EX Q]: [64.523, 131.207, -30.223, -95.659]
[EX A]: 17.462

[EX Q]: [145.229, 156.739, -41.538, 174.174, 110.461, 203.548, 204.579, -25.663, -92.365]
[EX A]:
92.796