You will be given a definition of a task first, then some input of the task.
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.

[147.614, 38.202, 234.736, 50.813, 106.808, -63.052, -92.199, -3.44, 85.636]
Output:
56.124