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: [183.144, 190.202, 160.759, 182.261, -81.003, 70.87, 202.743, -38.586, 65.87, 105.757]

104.202