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: [85.011, -20.439, 195.195, 114.286]

Output: 93.513


Input: Consider Input: [65.486, -51.995, 170.628, -23.998, 83.128, -57.38, 130.737, 214.738]

Output: 66.418


Input: Consider Input: [143.709, 201.375, 175.193, 44.325, 32.313, 216.109, -96.501, 208.253, 183.53, 80.768]


Output: 118.907