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.

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

Output: 6.972


Input: Consider Input: [126.136, -23.429, -25.125, -32.203, 36.405, 44.406, 147.828, -97.708, -69.793, 235.046]

Output: 34.156


Input: Consider Input: [-34.19, -59.655, 47.893, 224.506, -2.053]


Output: 35.3