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]: [246.744, 206.484, 194.841]
[EX A]: 216.023

[EX Q]: [-41.714, 218.588, 49.769, 142.519, 179.776, -99.226, 224.69, 191.642]
[EX A]: 108.256

[EX Q]: [-97.66, 128.444, -63.57, -5.412, 77.05, 156.616, 152.472]
[EX A]:
49.706