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]: [184.51, 79.649, 31.606, -65.279, 1.231]
[EX A]: 46.343

[EX Q]: [155.513, 206.938, 235.799]
[EX A]: 199.417

[EX Q]: [152.683, 147.968, 62.877, -44.254, 4.344]
[EX A]:
64.724