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: [168.083, -98.924, 92.038, 175.563, 107.537, -52.999, 113.841, -92.457, 145.357]

62.004