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: [-51.496, 56.177, 55.554, -17.425, -6.185, 3.721]

Output: 6.724


Input: Consider Input: [-12.392, 57.854, 59.291, -18.155, -94.56, 94.214, -38.912]

Output: 6.763


Input: Consider Input: [153.931, -83.966, 5.848, -27.34, 55.539, 121.727]


Output: 37.623