Statistics And Probability Question 203

Question: Quartile deviation for a frequency distribution is

[DCE 1998]

Options:

A) $ Q=Q_3-Q_1 $

B) $ Q=\frac{1}{2}(Q_3-Q_1) $

C) $ Q=\frac{1}{3}(Q_3-Q_1) $

D) $ Q=\frac{1}{4}(Q_2-Q_1) $

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Answer:

Correct Answer: B

Solution:

It is obvious.