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

[EX Q]: [-46.113, 125.487, 133.801, 230.957, 217.606, 147.203, -27.73, 66.455, -96.494]
[EX A]: 83.464

[EX Q]: [54.181, 68.195, 123.555, 158.006, 177.509, 10.3, -89.165, 144.033, 238.952, -66.686]
[EX A]:
81.888

