Data ikattha karna aur sajaana

Class 6 Maths · Chapter 4: Data Handling aur Presentation · NCERT Ganita Prakash section 4.1

Seekho

Data facts, numbers ya observations ka aisa sangrah hai jo humein kuch batata hai. Tumhare classmates ki lambai data hai. Aaj sabne naashte mein kya khaaya, uski list bhi data hai.

Class 6 school trip ke liye jagah chun rahi hai. Aditi ne har classmate se poochha aur answers likhe. Par sirf lambi list dekhkar, kya tum bata sakte ho kaunsi jagah sabse pasand hai?

Data ko sajaane ke liye har choice ek baar likho aur har answer ke liye ek tally mark lagao. Paanchwa nishaan pichhle chaar ko kaat-ta hai, taaki 5-5 mein gin sakein. Har choice ki ginti uski frequency hai. Yahan sports-day ke snack votes:

|||| || = 7 · |||| |||| | = 11

Data ko order mein lagana bhi madad karta hai. Kal 20 bachchon ne kitne glass paani piya, kam se zyada: 2, 2, 3, 3, 3, 3, 4, 4, 4, 4, 4, 4, 5, 5, 5, 5, 6, 6, 6, 7. Ab turant dikhta hai: sabse zyada 7 glass, aur 6 bachchon ne theek 4 glass piye.

Explore: data collector bano. Trip ke pehle 12 votes ko tally table mein sajaao.

1. Har vote ke liye jagah tap karo, ek-ek karke.
2. Do jagahon ko sabse zyada barabar votes mile. Dono ko tap karo.

Yaad rakho

• Data: jaankari dene wale facts, numbers ya observations.
• Tally marks 5-5 mein ginte hain; har group ki ginti uski frequency hai.

Quick check

Tally table mein |||| ||| ka matlab kya hai?

1. 7
2. 8
3. 9
4. 13

Socho

Kabir do baatein jaanna chahta hai: uski class ka pasandeeda phal, aur leap year mein kitne din hote hain. Kiske liye use data ikattha karna padega?

Practice

Teen levels (easy, medium, hard) ke naye sawaalon se practice karo, kuch hands-on, hints aur hal ke saath. Topic poora karne ke liye pichhle 5 mein se 4 sahi karo.