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]: [15.799, 6.545, 101.018, -76.074, 51.291, -58.732, 131.857, -36.93, 131.423]
[EX A]: 29.577

[EX Q]: [-28.982, -63.182, 22.408, 30.425, 125.743, 16.816, 96.711, 215.027, 32.552]
[EX A]: 49.724

[EX Q]: [50.54, 218.346, 19.804, 128.958, -69.364, 240.517, -80.18, 190.133, -25.446, 13.707]
[EX A]:
68.702