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.

[Q]: [-57.334, 24.995, 72.22, -78.376, 218.297, 203.999, 21.93, -20.246, 15.97]
[A]: 44.606


[Q]: [155.513, 206.938, 235.799]
[A]: 199.417


[Q]: [185.79, -37.447]
[A]:
74.172