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.

Ex Input:
[-44.354, 8.74, 34.514, 207.685]

Ex Output:
51.646


Ex Input:
[-64.231, 200.235, -9.547, -98.817, 222.577, 12.8, 214.705, 122.883, 216.246, 113.126]

Ex Output:
92.998


Ex Input:
[73.736, 129.162, 135.799, 133.153, -76.861, 95.336, 62.56, 7.288]

Ex Output:

70.022