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]: [109.109, -95.395, 5.04, 45.497, 56.443, -72.916]
[EX A]: 7.963

[EX Q]: [116.268, 173.27, 228.827, 52.695, 66.445, -34.051, 152.137]
[EX A]: 107.942

[EX Q]: [50.657, 19.892, 224.131, 193.253, 194.838]
[EX A]:
136.554