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:
[70.282, -54.718, 95.793, 94.043, 183.314]

Ex Output:
77.743


Ex Input:
[123.511, 37.811, 249.595, -25.324]

Ex Output:
96.398


Ex Input:
[50.09, 67.904, 74.533, 182.222]

Ex Output:

93.687