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: [125.861, 9.612, 91.682, 5.382, 111.319, -80.96, -22.551, 82.734, 236.247, 94.408]

65.373