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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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Doc/library/statistics.rst
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@ -162,15 +162,14 @@ However, for reading convenience, most of the examples show sorted sequences.
real-valued numbers. If *weights* is omitted or *None*, then
equal weighting is assumed.
The harmonic mean, sometimes called the subcontrary mean, is the
reciprocal of the arithmetic :func:`mean` of the reciprocals of the
data. For example, the harmonic mean of three values *a*, *b* and *c*
will be equivalent to ``3/(1/a + 1/b + 1/c)``. If one of the values
is zero, the result will be zero.
The harmonic mean is the reciprocal of the arithmetic :func:`mean` of the
reciprocals of the data. For example, the harmonic mean of three values *a*,
*b* and *c* will be equivalent to ``3/(1/a + 1/b + 1/c)``. If one of the
values is zero, the result will be zero.
The harmonic mean is a type of average, a measure of the central
location of the data. It is often appropriate when averaging
rates or ratios, for example speeds.
ratios or rates, for example speeds.
Suppose a car travels 10 km at 40 km/hr, then another 10 km at 60 km/hr.
What is the average speed?