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]: [227.404, 94.456, 233.241, 147.762, -31.667, -62.22, -93.912]
[EX A]: 73.581

[EX Q]: [58.371, 4.131]
[EX A]: 31.251

[EX Q]: [59.225, 44.897, 97.858, -74.683, 228.261, -31.273, 62.844]
[EX A]:
55.304

