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]: [-90.211, -60.08, 99.87, 18.704, 197.269, 173.722, 168.875]
[A]: 72.593

[Q]: [26.145, -44.254, 127.581, 162.122, 82.003, 143.809, 96.47, 34.362, 71.469]
[A]: 77.745

[Q]: [8.015, 163.159, -7.852, 235.127, 70.681, 223.469, 28.967, 195.462, -93.872, -95.538]
[A]:
72.762