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]: [232.014, -52.265]
[EX A]: 89.875

[EX Q]: [91.408, 178.508, 77.081, 13.419, 185.372, 158.828]
[EX A]: 117.436

[EX Q]: [247.544, 20.937, -21.651, 118.479, -32.116]
[EX A]:
66.639