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: [-72.018, 234.014, 18.724, 190.081, -79.412, -48.925, -78.051, 182.76, 238.348, 48.053]

63.357