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.

[111.425, 127.677, 74.853, -53.703, 223.682, 38.362, 45.692, -14.275]
Output:
69.214