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:
[-47.309, -46.076, 191.14, -6.032, 4.858]

Ex Output:
19.316


Ex Input:
[-40.246, -7.512, 174.245, -98.6]

Ex Output:
6.972


Ex Input:
[196.561, 5.364, 36.79, 40.919, 135.643, 219.097, -33.065, 211.959, 25.628]

Ex Output:

93.211