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]: [120.682, 53.847]
[EX A]: 87.264

[EX Q]: [32.131, 116.887, 66.741, 218.719, 106.049, -93.999]
[EX A]: 74.421

[EX Q]: [29.845, 38.914, 230.305, 97.028, 164.657, -91.808]
[EX A]:
78.157