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: [84.091, 17.564, 58.169, 6.482, 53.256, 216.444, 171.489]

Output: 86.785


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: [-94.649, -47.045, 244.483, 5.338, 243.43, -3.442, 16.366]


Output: 52.069