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:
[235.595, 227.906, -52.328, 100.922, 124.177, 149.582, -41.738]

Ex Output:
106.302


Ex Input:
[-12.392, 57.854, 59.291, -18.155, -94.56, 94.214, -38.912]

Ex Output:
6.763


Ex Input:
[-95.352, -26.358, 34.234, 162.959, 239.101, 137.014]

Ex Output:

75.266