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: [96.751, -19.713, 209.611, 175.81, 17.584, 195.179, -39.639, -80.064, 154.148, 176.935]

88.66