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:
[48.462, -80.347, -19.649, 180.664, -24.117]

Ex Output:
21.003


Ex Input:
[-92.0, 108.814, 164.207, 94.26, 33.74]

Ex Output:
61.804


Ex Input:
[-83.223, 122.947, 181.072, 38.959, 135.649, 56.109, -35.425, 245.127, -27.469, -36.231]

Ex Output:

59.752