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: [182.34, 105.105, 248.658, 104.174, -98.917, -47.707, -61.048, 241.903, -34.659, 31.89]

Output: 67.174


Input: Consider Input: [-17.141, 203.132, -6.872, 155.222, -99.642]

Output: 46.94


Input: Consider Input: [-18.311, 190.186, -92.778, 90.838, -56.699, 126.325, 88.378, 124.585, 57.63, 166.504]


Output: 67.666