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]: [147.664, 167.561, 244.106, -42.988, 9.425, 79.806, 239.58]
[EX A]: 120.736

[EX Q]: [89.776, -37.895, -45.315, 75.805, 144.052, 150.156]
[EX A]: 62.763

[EX Q]: [151.105, -63.975, 232.671, 86.95, 77.15, 218.299, 107.023, 92.972]
[EX A]:
112.774