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- 1. bar graph Subject-Math'S School-Kendriya Vidyalaya
- 2. DATA !! the inforMation colleted in the caSe iS called data. Types of DATA 1. PriMary data. 2. Secondary data.
- 3. primary data & secondary data When an inVeStigator collectS data hiMSelf With a definite Plan or deSign in hiS/her Mind, it iS called PriMary data. data Which are not originally collected by the inVeStigator but they are obtained froM PubliShed or unPubliShed SourceS are KnoWn aS Secondary data.
- 4. What is graph ??? a diagraM that ShoWS relationShiPS betWeen nuMberS. graPhS arrange nuMerical inforMation into a Picture froM Which it iS often PoSSible to See oVerall PatternS or trendS in the inforMation iS called graPh.
- 5. Types of graph frequency There are Three Types of graphs:1. Bar graph. 2. DouBle Bar graph. 3. picTograph. 6 5 4 3 1 0 1 40 35 30 25 Aj y a 20 Aj y2 a 15 10 5 0 1 2 3 4 5 6 frequency 2 3 5 7 9 11 13 15 17 19
- 6. What is bar graph ??? •a Bar graph is a picTorial represenTaTion of The numerical DaTa By a numBer of Bars of uniform wiDTh erecTeD horizonTally or verTically wiTh equally spacing BeTween Them. frequency 6 5 4 3 frequency 2 1 0 1 3 5 7 9 11 13 15 17 19
- 7. Example of bar graph. q. in a class of 30 pupils, The maThemaTics Teacher creaTes The TaBle Below ThaT gives The scores The pupils geT in a TesT (The Teacher scores The TesT from 0 To 20, anD all The scores are whole numBers) Draw a Bar graph ?
- 8. frequency Solution. 6 5 4 3 frequency 2 1 0 1 3 5 7 9 11 13 15 17 19
- 9. What is double bar graph. A bAr grAph showing two sets of dAtA simultAneously. it is useful for compArison of dAtA. 40 35 30 25 Ajay 20 Ajay2 15 10 5 0 1 2 3 4 5 6
- 10. Example of double bar graph. 40 35 30 25 Ajay 20 Ajay2 15 10 5 0 1 2 3 4 5 6 Name Ajay English Hindi Maths Sst. 35 35 32 29 Skt 39 Science 39 Ajay2 39 35 30 32 35 29
- 11. What is Pictograph ??? • A pictogrAph pictoriAl representAtion of dAtA using symbols.
- 12. Example of Pictograph. =100 cars one symbol stand for 100 cars 50 cars July = 250 August =300 September =400
- 13. $ THANKS FOR YOUR KIND CONSIDERATION $ # Made. By – ajay KuMar #

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