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bpo-43147: Remove archaic terminology. (GH-24462)

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Raymond Hettinger 2021-02-07 16:44:42 -08:00 • committed by GitHub
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2 changed files with 8 additions and 10 deletions
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Lib/statistics.py
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@ -367,10 +367,9 @@ def geometric_mean(data):
def harmonic_mean(data, weights=None):
"""Return the harmonic mean of data.
The harmonic mean, sometimes called the subcontrary mean, is the
reciprocal of the arithmetic mean of the reciprocals of the data,
and is often appropriate when averaging quantities which are rates
or ratios, for example speeds.
The harmonic mean is the reciprocal of the arithmetic mean of the
reciprocals of the data. It can be used for averaging ratios or
rates, for example speeds.
Suppose a car travels 40 km/hr for 5 km and then speeds-up to
60 km/hr for another 5 km. What is the average speed?