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]: [-66.271, 56.586, -21.072, 136.915, 54.951, 112.054]
[EX A]: 45.527

[EX Q]: [125.987, 140.164, 103.07, -78.923, -92.734, -96.888]
[EX A]: 16.779

[EX Q]: [34.49, 129.304, -5.901, -26.665, 222.885, 64.848, 44.983, -87.1]
[EX A]:
47.106