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]: [126.453, 169.516, 109.837, 208.695, 113.906, 56.894, 171.345, 126.81]
[EX A]: 135.432

[EX Q]: [246.282, 231.815, 1.709, -51.234, -76.432, 21.802, 18.917, 106.734, 168.909, -67.647]
[EX A]: 60.085

[EX Q]: [203.45, 193.726, 199.582, 32.046, 74.008, 170.209, 121.427, -33.882, 78.136, -8.04]
[EX A]:
103.066