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: [110.444, 23.089, -6.235, 112.579, 31.292, 190.857, 58.854, 148.587, 163.706, -5.219]

82.795