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]: [161.683, 162.041, 187.429, -79.681, 60.809, 225.806]
[EX A]: 119.681

[EX Q]: [233.84, -38.337, 10.341, 195.901, 68.586, 214.429, 213.823, 88.799]
[EX A]: 123.423

[EX Q]: [68.02, 232.235, 229.504, 23.444, 229.891, -34.877]
[EX A]:
124.703