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]: [246.278, 103.84, 214.867, -73.466, 230.048, -72.322, 172.891, 212.306, -78.335, 122.406]
[A]: 107.851


[Q]: [199.153, 182.13, -7.832, -60.259]
[A]: 78.298


[Q]: [78.523, 239.098, 9.698, 69.94]
[A]:
99.315