Draw ogives (Cumulative frequency curves) for the data given here:
Class interval frequency
$5 - 14$ $4$
$15 - 24$ $8$
$25 - 34$ $12$
$35 - 44$ $14$
$45 - 54$ $6$
$55 - 64$ $4$
$65 - 74$ $18$
$75 - 84$ $24$

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Solution

Class Interval Frequency Cumulative frequency
$05 - 14 15 - 24 25 - 34 35 - 44 45 - 54 55 - 64 65 - 74 75 - 84$ $0408121406041824$ $0412243844486690$ $M o r e t h a n 05 M o r e t h a n 15 M o r e t h a n 25 M o r e t h a n 35 M o r e t h a n 45 M o r e t h a n 55 M o r e t h a n 65 M o r e t h a n 75$ $9086786652464224$

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Calculate mode from the following data:

Income	$15 - 24$	$25 - 34$	$35 - 44$	$45 - 54$	$55 - 64$	$65 - 74$
No. of workers	$8$	$10$	$15$	$25$	$25$	$20$

Calculate mode from following data:

$\begin{matrix} Class Interval & 5 - 14 & 15 - 24 & 25 - 34 & 35 - 44 & 44 - 54 & 55 - 64 Frequency & 8 & 10 & 15 & 25 & 40 & 20 \end{matrix}$ .

Weight (in Kg)	30−34	35−39	40−44	45−49	50−54	55−59	60−64
Frequency	3	5	12	18	14	6	2

Income	15−24	25−34	35−44	45−54	55−64	65−74
No. of Workers	8	10	15	25	40	20

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