Class 6 · Chapter 9
Data Handling
Collection and organisation of data; pictographs; bar graphs; interpretation.
Read the full chapter
Official NCERT PDF
Full chapter as published by NCERT
NCERT Book Portal
Browse the complete textbook
CBSE Academic Portal
Official CBSE curriculum
Tip: open the NCERT PDF for the original chapter text alongside the notes here.
Detailed theory
Data = numerical or non-numerical facts. Raw data becomes meaningful when organised: tables, pictographs, bar graphs, tally marks.
Key concepts & formulas
01
Data is a collection of numbers gathered to give information.
02
A pictograph uses pictures to represent data.
03
A bar graph uses bars of uniform width to represent quantities.
04
The mode is the value with maximum frequency.
05
Range largest value smallest value.