Harmonic mean of the following twelve observations: 15, 20, 20, 5, 20, 20, 15, 20, 15, 20, 20, and 20 is ________ (rounded off to one decimal place).
1 markStatisticsDescriptive statistics and dispersionGeometric and harmonic meansModerateabout 2 min
IIT JAM 2026 Question 41: Descriptive statistics and dispersion
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Descriptive statistics and dispersion has come up 117 times in 6 exams since 2004.
What this question tests
This question is on Geometric and harmonic means, part of Descriptive statistics and dispersion in Statistics.
Averages for rates, ratios and growth, and how they compare with the arithmetic mean.
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