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: [21.723, 130.05, 75.095]

Output: 75.623


Input: Consider Input: [-72.554, 9.809, 27.09, 190.698]

Output: 38.761


Input: Consider Input: [-94.756, 53.245, 226.287, -86.689, 63.893, 43.674]


Output: 34.276


