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: [229.28, 202.632, 129.717, 211.459, 203.204]

Output: 195.258


Input: Consider Input: [76.889, 179.836, 105.364]

Output: 120.696


Input: Consider Input: [-47.111, 60.79, -33.164, 51.467, -21.794, 4.599]


Output: 2.464