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Finding Mode for Grouped Data When Class Intervals Are Given

The modal cla...

Question

The modal class of the given frequency distribution is
Marks Obtained $10 - 20$ $20 - 30$ $30 - 40$ $40 - 50$
Cumulative Frequency $7$ $35$ $27$ $34$

10 - 20

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30 - 40

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20 - 30

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40 - 50

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Solution

The correct option is D $20 - 30$
$\begin{matrix} M o d a l c l a s s = t h e g r o u p w i t h t h e h i g h e s t f r e q u e n c y H i g h e s t f r e q u e n c y = 35 ∴ M o d a l c l a s s = 20 - 30 \end{matrix}$

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Similar questions

Class	0-10	10-20	20-30	30-40	40-50	50-60
Frequency	3	9	15	30	18	5

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Frequency	$2$	$3$	$7$	$8$	$5$

80, 10, 30, 70, 60, 50, 50, 40, 40, 20, 40, 90, 50, 30, 70, 10, 60, 50, 20, 70, 70, 30, 80, 40, 20, 80, 90,

50, 80, 60, 70, 40, 50, 60, 90, 60, 40, 40, 60

60

Class	$0 - 10$	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Frequency	7	$15$	$13$	$17$	$10$

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Marks Obtained	$10 - 20$	$20 - 30$	$30 - 40$	$40 - 50$
Cumulative Frequency	$7$	$35$	$27$	$34$