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# Bar graph

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### Bar graph

1. 1. bar graph Subject-Math'S School-Kendriya Vidyalaya
2. 2. DATA !! the inforMation colleted in the caSe iS called data. Types of DATA 1. PriMary data. 2. Secondary data.
3. 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  data Which are not originally collected by the inVeStigator but they are obtained froM PubliShed or unPubliShed SourceS are KnoWn aS Secondary data.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. 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. 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. 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. 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. 8. frequency Solution. 6 5 4 3 frequency 2 1 0 1 3 5 7 9 11 13 15 17 19
9. 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. 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. 11. What is Pictograph ??? • A pictogrAph pictoriAl representAtion of dAtA using symbols.
12. 12. Example of Pictograph. =100 cars one symbol stand for 100 cars 50 cars July = 250 August =300 September =400
13. 13. \$ THANKS FOR YOUR KIND CONSIDERATION \$ # Made. By – ajay KuMar #