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]: [118.783, 191.64, 225.792, 160.903, 209.763, 39.225, 24.607]
[EX A]: 138.673

[EX Q]: [2.81, 52.99, 55.279, 75.682, 73.835, 148.077, -54.162, 112.112]
[EX A]: 58.328

[EX Q]: [60.906, 170.092, 173.152]
[EX A]:
134.717