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:
[128.152, 95.16, 70.113, -16.853]
answer:
69.143


question:
[199.874, -45.634, -39.343, 75.985, 143.35, 87.15, 120.645, -34.636, 159.567]
answer:
74.106


question:
[-96.182, -37.177, 130.645, -44.92, -12.78, 90.335, -99.791, -11.926, 217.275]
answer:

15.053