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]: [25.58, 99.319, 165.429]
[EX A]: 96.776

[EX Q]: [108.822, 139.139, 130.938, 100.996, 155.361, 8.752, 221.639, -12.877]
[EX A]: 106.596

[EX Q]: [-95.993, 61.987, -45.819, -68.623, 0.91, 54.594]
[EX A]:
-15.491