Line graph kis kaam aata hai?

Mukhya roop se ye dikhaane ke liye ki koi maatra samay ke saath kaise badalti hai, jaise mahine ka taapmaan, saal ke launch ya mahine ke janm. Jude hue bindu badhna, ghatna aur dohraate pattern aasaani se dikhaate hain.

Line graph kaise padhte hain?

Pehle pehchaaniye kya diya hai: sheershak, har aksh kya dikhaata hai, scale, kaun sa rang ya marker kis cheez ka hai, aur poora pattern. Phir nishkarsh nikaaliye: trend bataaiye, rekhaon ki tulna kijiye, aur note kijiye ki data kya nahi bata sakta.

Aisa chitra jo data ko rangon, aakaaron aur chhote text ke saath jodta hai taaki pattern jaldi samajh aaye, jaise rajyon ko is hisaab se rangne wala naksha ki wo chaawal zyada pasand karte hain ya gehun.

Line graph kaise padhein? | Class 8 Maths Part 2

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Column se rekha tak

Hum pictograph, bar graph, clustered column graph aur dot plot pehle se jaante hain. Chapter 2023 mein Kerala aur Punjab ke mahine ke adhiktam taapmaan ko pehle clustered column graph mein dikhaata hai aur phir har rajya ke bindu rekhaon se jodkar. Dono mein ek hi jaankaari hai, par line graph mein mahine-dar-mahine badlaav dekhna kahin aasaan hai. Line graph zyaadatar samay ke data ke liye hote hain.

Kisi bhi graph ko padhne ke do kadam

Kadam 1: kya diya hai, pehchaaniye. Sheershak, har aksh kya dikhaata hai (aade mein mahine, khade mein °C), scale, aur kaun sa rang aur marker kis rajya ka hai, dekhiye. Alag marker aakaar black and white print mein, ya rang pehchaanne mein mushkil wale paathakon ke liye, madad karte hain. Poochhiye data kaise jama hua: kisi rajya ka mahine ka adhiktam uske mausam kendron ki sabse oonchi reading se aata hai. Isse data ka daayra aur seemaayein samajh aati hain.

Kadam 2: nishkarsh aur vyaakhya. Punjab ka adhiktam January mein lagbhag 19°C se June mein 38°C tak chadhta hai, July mein 35°C se thoda neeche aata hai, September tak lagbhag sapaat rehta hai aur December tak lagbhag 23°C tak girta hai. Kerala ka lagbhag sapaat rehta hai, July mein lagbhag 29°C aur April mein 33°C ke beech. Yaani Punjab ka taapmaan kahin zyada badalta hai. Achhi padhaai naye sawaal bhi uthaati hai, jaise dono rajya itne alag kyon hain.

Antariksh mein bheed

Har saal antariksh mein bheji gayi cheezon ka line graph 2012 se 2024 tak duniya ki kul ginti aur USA, China aur Russia ki ginti dikhaata hai. 2023 mein duniya ki ginti lagbhag 2,900 aur 2024 mein 2,800 thi, isliye 2023 sabse ooncha tha. Teen deshon ki ginti duniya ke jod ke barabar nahi, yaani baaki desh nahi dikhaaye gaye. USA ki rekha 2022 se 2023 tak 2023 se 2024 ki tulna mein zyada teekhi hai: rekha jitni teekhi, badhat utni zyada.

Har saal antariksh mein bheji gayi cheezein: duniya aur USA, anumaanit readings — Har saal antariksh mein bheji gayi cheezein

Kuch kathan sahi nishkarsh hain aur kuch nahi. 2022 se 2024 mein USA ne lagbhag teen-chauthaai cheezein bheji, aur 2024 mein China aur Russia ne milkar lagbhag 400. Par duniya ki ginti har saal nahi badhi, aur graph Nepal ke baare mein kuch nahi batata. Clustered column graph mein ye data 52 columns maangta; line graph trend kahin saaf dikhaata hai.

Saal bhar ki baarish

Mahine ki ausat baarish kai saalon tak baarish naapkar aur har mahine ka ausat lekar banti hai. Chhah tatiya shehron ke graph dikhaate hain ki paschimi tat ke Kovalam, Udupi aur Mumbai mein kahin zyada baarish hoti hai, June se August mein sabse zyada, jabki poorvi tat ke Rameswaram mein zyaadatar baarish October se December mein hoti hai aur Chennai mein November mein sabse zyada. Puri, poorvi tat par hote hue bhi, July se September mein sabse zyada baarish paata hai. January se March har jagah sookha rehta hai. Baarish ke dinon ki sankhya bhi aisi hi kahaani kehti hai.

Mangaluru, Port Blair, Rameswaram aur New Delhi mein har mahine baarish ke ausat din — Har mahine baarish ke ausat din

Khud line graph banaana

Banaane ke liye aade aksh par samay lagaaiye, khade aksh ke liye scale chuniye, har value ka bindu lagaaiye aur bindu jodiye. Ek dukaan ke ausat graahakon ke liye, aane waalon ki ek rekha aur khareedne waalon ki ek rekha dikhaati hai ki Sunday sabse vyast din hai aur khareedna aane ke saath chalta hai.

Hafte mein dukaan par aane aur khareedne wale graahak, line graph ke roop mein — Hafte mein aane aur khareedne wale graahak

Dohraata pattern

April 2017 se March 2020 tak Bharat mein har mahine ke janm ka graph har saal dohraati ek lehar dikhaata hai: August se October mein janm lagbhag 20 lakh (2 million) mahina tak pahunchte hain aur April ke aas-paas lagbhag 14 se 15 lakh tak girte hain. Aisa dohraata aakaar line graph par aasaani se dikhta hai.

Bharat mein har mahine janm, April 2017 se March 2020, anumaanit readings — Bharat mein har mahine janm

Infographic aur chikne curve

Infographic chitra mein kahaani kehta hai. Ek naksha har rajya ko −100 (zyaadatar gehun) se +100 (zyaadatar chaawal) tak ki value deta hai aur chaawal pasand dakshin aur poorab ko gehun pasand uttar-paschim se alag karne wali rekha kheenchta hai; poore Bharat ka score +13.48 hai, yaani chaawal jeetta hai. Umar ke saath aam neend ka line graph chikne curve jaisa dikhta hai kyonki uske bindu bahut paas-paas hain: 6 saal par lagbhag 9.5 ghante, 30 se 50 ke beech lagbhag 8 ghante, phir badhkar lagbhag 8.5 ghante.

Chaawal ya gehun? Infographic se chune hue rajyon ki values — Chaawal ya gehun? Chune hue rajya

Aur padhein: mean (ausat) kya hai?, frequency table se mean aur median, chapter ke notes aur NCERT solutions.

Line graph kaise padhein? Samay ke saath badlaav