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:
[130.57, 157.221, 228.177, 32.361, 166.457]
answer:
142.957


question:
[192.74, 78.623, -5.937, 144.535]
answer:
102.49


question:
[238.124, 163.429, 28.738, -70.082, 86.352, 125.656, 20.404, 159.489, 27.774]
answer:

86.654