The following table gives the height of trees:
Height No. of trees
Less than $7$ $26$
Less than $14$ $57$
Less than $21$ $92$
Less than $28$ $134$
Less than $35$ $216$
Less than $42$ $287$
Less than $49$ $341$
Less than $56$ $360$
Draw 'less than' ogive and 'more than' ogive.

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Solution

For less than method :
Plot the points $(7, 26), (14, 57), (21, 92), (28, 134), (35, 216), (42, 287), (49, 341), (56, 360)$ by taking upper class limit over the x-axis and cumulative frequency over the y-axis.
By more than method :
Height Frequency Height more than cf
$0 - 7$ $26$ $0$ $360$
$7 - 14$ $31$ $7$ $334$
$14 - 21$ $35$ $14$ $303$
$21 - 28$ $42$ $21$ $268$
$28 - 35$ $82$ $28$ $226$
$35 - 42$ $71$ $35$ $144$
$24 - 49$ $54$ $42$ $73$
$49 - 56$ $19$ $49$ $19$
Take lower class limit over the x-axis and CF over the y-axis and plot $(0, 360), (7, 334), (14, 303), (21, 268) (28, 226), (35, 144), (42, 73), (49, 19) .$

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Similar questions

Height	No. of trees
Less than 7 Less than 14 Less than 21 Less than 28 Less than 35 Less than 42 Less than 49 Less than 56	26 57 92 134 216 287 341 360

Height	Number of trees
Less than 7 m Less than 14 m Less than 21 m Less than 28 m Less than 35 m Less than 42 m Less than 49 m Less than 56 m	25 45 95 140 235 275 320 360

35

Weight (in kg)	Number of students
Less than $38$ Less than $40$ Less than $42$ Less than $44$ Less than $46$ Less than $48$ Less than $50$ Less than $52$	$0$ $3$ $5$ $9$ $14$ $28$ $32$ $35$

Marks obtained	Less than $5$	Less than $10$	Less than $15$	Less than $20$	Less than $25$
No of students	$2$	$8$	$18$	$27$	$35$

Weight (in kg)	Number of students
Less than 38 Less than 40 Less than 42 Less than 44 Less than 46 Less than 48 Less than 50 Less than 52	0 3 5 9 14 28 32 35

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