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:
[57.506, 172.357, 191.473, 131.849]
answer:
138.296


question:
[15.491, 60.283, 240.958, 155.995, 35.585, -55.875, 82.379, 142.503, 95.176, 85.281]
answer:
85.778


question:
[139.821, 19.149, 166.7, 184.73]
answer:

127.6