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: [-22.693, 10.739, 193.652, 126.178, 158.341, 141.582, -74.397, 233.007, 228.669, 65.75]

106.083