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: [-96.182, -37.177, 130.645, -44.92, -12.78, 90.335, -99.791, -11.926, 217.275]

Output: 15.053


Input: Consider Input: [125.67, 5.514, 161.93, 107.05, 118.949, 233.815, 230.211]

Output: 140.448


Input: Consider Input: [158.637, 34.783, 39.728, -83.123, -51.268, 204.769]


Output: 50.588


