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]: [30.224, 63.76, 96.876, 149.052, -38.974, 48.35, 133.493, 142.787, 10.958]
[EX A]: 70.725

[EX Q]: [196.683, 97.538, 247.799, 203.036, 203.369, -15.737]
[EX A]: 155.448

[EX Q]: [-73.614, 202.002, 209.806, -68.131, 96.3]
[EX A]:
73.273