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: [-6.099, 142.31]

Output: 68.106


Input: Consider Input: [169.131, -79.809, 119.898, 174.146, -1.167, 89.734, 155.318, -26.905, 182.476, 164.085]

Output: 94.691


Input: Consider Input: [-39.5, 102.75, -38.984, 62.36, 65.589, 240.819, 134.869, 157.49]


Output: 85.674