Error in the prompt of HumanEval/47

[Kim-mins]

def median(l: list):
    """Return median of elements in the list l.
    >>> median([3, 1, 2, 4, 5])
    3
    >>> median([-10, 4, 6, 1000, 10, 20])
    15.0
    """

Maybe the output of median([-10, 4, 6, 1000, 10, 20]) should be 8 not 15.0 Can you please check it?

Here's the test with statistics library

>>> import statistics
>>> statistics.median([-10, 4, 6, 1000, 10, 20])
8.0

[Magolor]

I've found the same problem.
However, the question is: Is this an error in the annotation process that needs to be fixed, or a feature intended to test the completion performance under imperfect prompts?