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]: [236.959, 159.123, 17.257, 241.561, 119.782, -3.56, -30.957]
[EX A]: 105.738

[EX Q]: [219.336, -29.108, -41.612, 105.709]
[EX A]: 63.581

[EX Q]: [40.66, 108.337, 198.97, -57.311, -52.26]
[EX A]:
47.679

