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Chapter 12 Class 9 Statistics

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Updated for 2023-24 NCERT Book.

Get solutions of all NCERT Questions of Chapter 12 Class 9 Statistics. All exercise questions and examples are solved with detailed explanations of each and every question.

 

In this chapter, we will learn

  • The difference between primary and secondary data
  • Representing raw data as ungrouped and grouped frequency distribution table
  • Representing data as a bar graph
  • Drawing a histogram - with uneven class interval
  • Drawing frequency polygon - with and without a histogram
  • Finding mean, median and mode of raw data

 

Click on a NCERT Exercise below, or start the chapter from the concepts given below.

Serial order wise

Ex 12.1
Examples
Primary and Secondary Data
Making grouped frequency distribution table
Finding Mean, Median, Mode

Concept wise

Collecting Data
Raw Data
Ungrouped Data
Grouped Data
Bar Graph
Histogram
Frequency polygon
Mean
Median
Mode
Combined - Mean Median Mode

What's in it?

Updated for 2023-24 NCERT Book.

Get solutions of all NCERT Questions of Chapter 12 Class 9 Statistics. All exercise questions and examples are solved with detailed explanations of each and every question.

 

In this chapter, we will learn

  • The difference between primary and secondary data
  • Representing raw data as ungrouped and grouped frequency distribution table
  • Representing data as a bar graph
  • Drawing a histogram - with uneven class interval
  • Drawing frequency polygon - with and without a histogram
  • Finding mean, median and mode of raw data

 

Click on a NCERT Exercise below, or start the chapter from the concepts given below.