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.
--------
Question: [128.152, 95.16, 70.113, -16.853]

Answer: 69.143


Question: [108.822, 139.139, 130.938, 100.996, 155.361, 8.752, 221.639, -12.877]

Answer: 106.596


Question: [-19.159, 128.529, 167.037, 114.455, -97.409, 67.038]

Answer:
60.082