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: [54.715, 180.963, 239.308, 175.084, 147.044, 136.262, 184.009]

A: 159.626
****
Q: [226.538, 249.881, 87.913, 108.247, 49.816, 12.151, 150.461]

A:
126.43
****