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: [-65.295, 113.842, -82.683, 235.996, 143.686, 31.127, 135.386, 217.657, -87.331]

Answer: 71.376


Question: [15.799, 6.545, 101.018, -76.074, 51.291, -58.732, 131.857, -36.93, 131.423]

Answer: 29.577


Question: [-87.68, 97.154, 61.47, 32.543]

Answer:
25.872