Economy, asked by ebinbaiju100, 8 months ago

calculate coefficient of quartile deviation from the following data. 10,17,10,31,32,39,41,44,45,42​

Answers

Answered by MaheswariS
1

\textbf{Given:}

\textsf{Data:}

\mathsf{10,17,10,31,32,39,41,44,45,42}

\textbf{To find:}

\textsf{Coefficient of quartile deviation}

\textbf{Solution:}

\underline{\textsf{Formula used:}}

\boxed{\mathsf{Coefficient\;of\;quartile\;deviation=\dfrac{Q_3-Q_1}{Q_3+Q_1}}}

\textsf{Arrange the given in ascending order:}

\mathsf{10,10,17,31,32,39,41,42,44,45}

\underline{\mathsf{Q_1:}}

\mathsf{=Median\;of\;the\;lower\;half\;of \;the set\{10,10,17,31,32\}}

\mathsf{=17}

\implies\mathsf{Q_1=17}

\underline{\mathsf{Q_3:}}

\mathsf{=Median\;of\;the\;upper\;half\;of \;the set\;\{39,41,42,44,45\}}

\mathsf{=42}

\implies\mathsf{Q_3=42}

\mathsf{Now,}

\mathsf{Coefficient\;of\;quartile\;deviation=\dfrac{Q_3-Q_1}{Q_3+Q_1}}

\mathsf{Coefficient\;of\;quartile\;deviation=\dfrac{42-17}{42+17}}

\mathsf{Coefficient\;of\;quartile\;deviation=\dfrac{25}{59}}

\boxed{\mathsf{Coefficient\;of\;quartile\;deviation=0.424}}

\textbf{Find more:}

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