Practice Summary (12.2) - Statistics - CBSE 9 Mathematics
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Practice Questions

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Question 1 Easy

Draw a bar graph to represent the following data: \n January: 10, February: 20, March: 15.

💡 Hint: Remember to label your axes!

Question 2 Easy

What is a histogram?

💡 Hint: Think about the differences between bar graphs and histograms.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is a bar graph used for?

Categorical data
Continuous data
Both

💡 Hint: Remember the types of data each graph represents.

Question 2

True or False: A histogram can have gaps between the bars.

True
False

💡 Hint: Think about how continuous data is represented.

3 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Using the data provided: 0-10: 5, 10-20: 10, 20-30: 20, create a frequency polygon correctly representing it.

💡 Hint: Ensure the midpoints of the intervals are accurate.

Challenge 2 Hard

Analyze this histogram and describe how a misrepresentation might lead you to conclude the most populous age group is incorrectly depicted.

💡 Hint: Think about scaling and perceived size.

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