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:
[-4.527, 190.006, 207.554, 178.685, -20.05, 13.024, 190.617, 37.539]

Ex Output:
99.106


Ex Input:
[159.243, 17.964, 13.543, 175.402, -52.441, -34.741, 158.461]

Ex Output:
62.49


Ex Input:
[248.527, 218.188, 233.73, -54.281, 55.644, -34.589]

Ex Output:

111.203