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: [57.478, 212.225, -90.816, -10.092, 238.514, 60.36, 59.627]

Output: 75.328


Input: Consider Input: [244.1, -84.018, 7.772, 69.273, 99.397, 158.691, -0.315]

Output: 70.7


Input: Consider Input: [232.312, -91.217, 80.736, 1.007, -88.542, 82.515, 215.274, -86.326, 150.463, -87.969]


Output: 40.825