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]: [211.927, 190.941, -74.44, 7.991, -80.894, 48.291, 127.383, -51.774]
[EX A]: 47.428

[EX Q]: [-60.041, -56.779, 6.2, 73.114, 137.319]
[EX A]: 19.963

[EX Q]: [25.155, 237.342, 39.319, 42.962, 13.508, -47.345, 78.939, 26.554]
[EX A]:
52.054