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]: [247.332, 97.053, 43.697, 51.168, -56.25, 163.444]
[EX A]: 91.074

[EX Q]: [41.081, 166.314, -14.556, -84.648, -8.286]
[EX A]: 19.981

[EX Q]: [156.559, 58.798]
[EX A]:
107.678