Practice Example 4 - 12.1.C.1 | 12. Statistics | CBSE 9 Mathematics
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a bar graph used for?

💡 Hint: Think about comparing different quantities of things.

Question 2

Easy

Define a histogram.

💡 Hint: Consider how you might group data points into ranges.

Practice 4 more questions and get performance evaluation

Interactive Quizzes

Engage in quick quizzes to reinforce what you've learned and check your comprehension.

Question 1

What is the main purpose of a bar graph?

  • To show frequencies
  • To represent categorical data
  • To compare intervals

💡 Hint: Remember what type of data bar graphs are best for.

Question 2

True or False: Histograms have gaps between the bars.

  • True
  • False

💡 Hint: Think about how histograms differ from bar graphs.

Solve 1 more question and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Given the marks of students: (0-20: 3, 20-40: 8, 40-60: 15, 60-80: 10), draw a histogram and frequency polygon.

💡 Hint: Consider the widths of your bars when plotting your histogram.

Question 2

Analyze the effects of changing the intervals in a histogram for a class's test scores on the visibility of data trends.

💡 Hint: Think about how wider or narrower intervals would display your information.

Challenge and get performance evaluation