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:
[41.212, 221.072, 226.666, 3.688, 180.239, 142.767, 184.012, 63.249]

Ex Output:
132.863


Ex Input:
[20.538, 100.835, -23.197, 207.707, -12.758, 152.97, 190.404]

Ex Output:
90.928


Ex Input:
[204.581, -25.005, 47.493, -74.782, 21.48, 130.0]

Ex Output:

50.628