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]: [152.683, 147.968, 62.877, -44.254, 4.344]
[EX A]: 64.724

[EX Q]: [-31.252, 246.934, 96.512, 19.356, -50.759, 134.528, 176.914, 17.007, 171.802]
[EX A]: 86.782

[EX Q]: [238.695, -32.75, -11.325, -41.57, -47.99, 164.697, 218.758, 86.814, 176.681]
[EX A]:
83.557