Detailed Instructions: 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.
Q: [156.951, 30.808, 141.058, 178.168, 65.522, -4.456, -28.233, 139.967]
A:
84.973