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: [-93.86, -28.498, -68.673, 93.1, 223.892, 85.178, 196.645, 99.377, 204.458, 80.745]

79.236