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: [93.048, 173.783, 88.736, -95.085, -77.155, -2.381, -84.313]

Output: 13.805

Input: Consider Input: [89.776, -37.895, -45.315, 75.805, 144.052, 150.156]

Output: 62.763

Input: Consider Input: [216.16, 58.77, -76.559, 200.065, 187.809, 69.246, 77.895, 200.934, 230.834]
Output: 129.462