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:
[162.26, 79.268]
answer:
120.764


question:
[-34.026, 86.773, 149.194, 228.14]
answer:
107.52


question:
[197.314, 108.282, 77.687, -91.919, -2.084, 245.978, 150.625, 111.613, 88.383]
answer:

98.431