instruction:
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:
[-19.769, 147.929, -36.133, 201.287, 28.528, -6.089, 122.533, 127.892, -36.662]
answer:
58.835


question:
[-4.749, 102.787, -45.229, 184.111, 221.888, 22.727, 20.887, 34.094]
answer:
67.065


question:
[54.32, -77.717, 25.865, -28.992, -78.908, 135.146, 135.358, 156.696, -92.81, -98.745]
answer:

13.021