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]: [223.847, 115.483, 148.407, -44.824, 99.251, 36.833, -45.949]
[EX A]: 76.15

[EX Q]: [110.671, -22.006, 168.421, 152.718, 116.702, -26.669, -55.023, -72.932]
[EX A]: 46.485

[EX Q]: [29.093, 198.56, 134.161]
[EX A]:
120.605