Quartile deviation is equal to _______.

semi - interquartile range

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double the interquartile range

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interquartile range

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none of the above

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Solution

The correct option is A semi - interquartile range

Quartile deviation also known as semi inter-quartile deviation divides the series into four equal parts and measures the distance average between the third and the first quartile. The first quartile is denoted as Q₁ and the third quartile is denoted as Q₃ .
Quartile deviation or semi inter-quartile deviation = (Q₃-Q₁) /2

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Similar questions

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10

and semi-interquartile range is

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, then the lower quartile and upper quartile respectively are

Q. Calculate interquartile range, quartile deviation and coefficient of quartile deviation from the following data:

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Income (in ₹)	1,200	1,400	1,500	1,700	2,000	2,100	2,200

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3, 6, 5, 4, 2, 1, 7

In a class test, if the marks scored by 11 students are 13, 17, 20, 5, 3, 19, 7, 6, 11, 15 and 17. Then, match the following:
$\begin{matrix} L i s t I & L i s t I I A . & M e d i a n & i & 17 B . & L o w e r q u a r t i l e & i i . & 11 C . & U p p e r q u a r t i l e & i i i . & 6 D . & I n t e r q u a r t i l e r a n g e & i v . & 13 \end{matrix}$

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