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]: [235.595, 227.906, -52.328, 100.922, 124.177, 149.582, -41.738]
[EX A]: 106.302

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

[EX Q]: [227.503, -84.373, -7.613, 62.861]
[EX A]:
49.594