Unorganized data is raw data.

 

Example:

Marks of 20 students in maths test

      11, 4, 27, 18, 18, 3, 24, 22, 11, 22,

      18, 11, 18, 7, 29, 18, 11, 6, 29, 11

 

Suppose we want number of students whose marks in 29.

We will have to search for 29 in the numbers & count it.

 

What if the number of students are more?

If there are 100 students, the counting will become difficult.

So, we organise the data using tally marks.

  1. Chapter 9 Class 6 Data Handling
  2. Concept wise

About the Author

Davneet Singh's photo - Teacher, Computer Engineer, Marketer
Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.