[issue38382] statistics.harmonic_mean fails to raise error with negative input that follows a 0

[gaoxinge]

gaoxinge <gaoxx5 at gmail.com> added the comment:

The document https://github.com/WarrenWeckesser/cpython/blob/master/Lib/statistics.py#L389 in `harmonic_mean` is out-dated. I think we can simply follow the wiki:

- [arithemic mean](https://en.wikipedia.org/wiki/Arithmetic_mean)
- [geometric mean](https://en.wikipedia.org/wiki/Geometric_mean)
- [harmonic mean](https://en.wikipedia.org/wiki/Harmonic_mean)

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<https://bugs.python.org/issue38382>
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