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.

Ex Input:
[-61.905, -98.66, 90.472, 237.317, 5.243, 196.933]

Ex Output:
61.567


Ex Input:
[222.94, 54.014, 232.208, -16.089, 214.915, 2.232]

Ex Output:
118.37


Ex Input:
[159.397, 45.088, -87.316, 115.267, 227.836, 31.542, 6.515, 159.921, 38.678, 244.63]

Ex Output:

94.156