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]: [-42.207, -46.667, 171.095]
[A]: 27.407


[Q]: [-7.057, 122.729, -78.932, 52.502, 191.819, 80.994, 29.505, -10.501]
[A]: 47.632


[Q]: [-72.328, 111.574, 221.763, 157.184]
[A]:
104.548