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:
[220.903, 155.959]
answer:
188.431


question:
[218.46, 7.937, 155.624, 82.813, 93.516]
answer:
111.67


question:
[242.907, -39.291, 161.97]
answer:

121.862