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: [-9.301, -10.629, 88.777, 68.965]

Output: 34.453


Input: Consider Input: [-3.857, -93.605, 43.857, -73.731, 84.094, -24.492, -41.811, 115.552, 231.429, 130.678]

Output: 36.811


Input: Consider Input: [-71.767, 93.635, 106.931, -66.434, -52.767, 211.46, 114.457, -90.156, 3.098, 94.998]


Output: 34.346