Definition: 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: [65.789, -62.352, 30.189, 198.042, 63.008, -63.568, -94.606, 53.332]

23.729