Question
Construct a frequency polygon from the following data :
| Class-interval | 1 - 5 | 6 - 10 | 11 - 15 | 16 - 20 | 21 - 25 |
| Frequency | 5 | 8 | 12 | 7 | 4 |
✓
Answer
[Hint. Take the class-intervals as 0.5 - 5.5; 5.5 - 10.5; 10.5 - 15.5; 15.5 - 20.5, 20.5 - 25.5 and 25.5 - 30.5 with frequencies 5, 8, 12, 7, 4 and 0 respectively i.e, convert it to exclusive form.]
Need a full question paper?
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
Explore more
Similar questions
From the given figure,find:$(i)\cos x^\circ ;(ii)\ x^\circ ;(iii)\frac{1}{\tan ^2 x^{\circ}}-\frac{1}{\sin ^2 x^{\circ}};(iv)$ Use $\tan x^o,$ to find the value of $y.$
→Make $x$ the subject of formula $a \frac{x^2}{a^2}+\frac{y^2}{b^2}=1$
→Which of the following pairs of triangles are congruent? Give reasons$\triangle ABC;(\angle B = 70^\circ ,BC = 6\ cm,\angle C = 50^\circ );\triangle XYZ;(\angle Z = 60^\circ ,XY = 6\ cm,\angle X = 70^\circ ).$
→Solve the following equations for the unknown: $\frac{x+13}{x^2-1}+\frac{5}{x+1}=\frac{7}{x+1}$
→In the given figure$, \angle B = 60^\circ , AB = 16 \ cm$ and $BC = 23 \ cm,$Calculate $: (i)\ BE, \ (ii)\ AC$
→A man leaves half his property to his wife, one$-$third to his son, and the remaining to his daughter. If the daughter's share is $Rs. 15000,$ how much money did the man leave? How much money did his wife get?
→For solving pair of equation, in this exercise use the method of elimination by equating coefficients :$2 x-3 y-3=0, \frac{2 x}{3}+4 y+\frac{1}{2}=0$
→If 11 pens and 19 pencils together cost ₹ 502; while 19 pens and 11 pencils together cost ₹ 758, how much 3 pens and 6 pencils cost together?
If a, b, c are positive real numbers, show that:
$\sqrt{a^{-1} b} \cdot \sqrt{b^{-1} c} \cdot \sqrt{c^{-1} a}=1$
→$\sqrt{a^{-1} b} \cdot \sqrt{b^{-1} c} \cdot \sqrt{c^{-1} a}=1$
If the following pair of the triangle is congruent? state the condition of congruency : In $\triangle ADC$ and $\triangle PQR, BC = QR, \angle A = 90^o, \angle C = \angle R = 40^o$ and $\angle Q = 50^o.$
→