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]: [218.807, 72.849, 7.838, 124.81, 45.929, 239.888]
[EX A]: 118.354

[EX Q]: [34.678, 109.562]
[EX A]: 72.12

[EX Q]: [-68.757, 136.082, 230.812, 144.897, 20.1, 13.539]
[EX A]:
79.446