In a village of 100 households (HH), the mean HH income is 400 and variance of HH income is 25600. The government decides to augment income of every HH by 100. Then the coefficient of variation () of the HH income:
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In a village of 100 households (HH), the mean HH income is 400 and variance of HH income is 25600. The government decides to augment income of every HH by 100. Then the coefficient of variation (cv) of the HH income: (A) increases by 25 % (B) increases by 20 % (C) decreases by 20 % (D) decreases by 25 %
Descriptive statistics and dispersion has come up 117 times in 6 exams since 2004.
This question is on Measures of dispersion, part of Descriptive statistics and dispersion in Statistics.
How spread out data are: range, variance, standard deviation and relative measures.
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Question from the UoH 2020 paper. Solutions are TestStop's own. Not affiliated with or endorsed by any examination authority.