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:
[217.301, 19.358, -21.02, -51.249]
answer:
41.098


question:
[-6.099, 142.31]
answer:
68.106


question:
[-11.846, -44.11, 142.451]
answer:

28.832