Practice Frequency Polygon - 3.3 | Chapter 4 : Statistics | CBSE Class 9 Maths
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Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

Calculate the class mark for the interval 40-50.

πŸ’‘ Hint: Add the lower and upper limits and divide by 2.

Question 2

Easy

What is the frequency of the interval 30-40 if you have a frequency table?

πŸ’‘ Hint: Check the table for the frequency corresponding to the 30-40 interval.

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 a frequency polygon used for?

  • To calculate mean
  • To represent frequency distribution
  • To perform algebra

πŸ’‘ Hint: Think about the main purpose of graphical representations in statistics.

Question 2

True or False: A frequency polygon can be created without using a histogram.

  • True
  • False

πŸ’‘ Hint: Recall the steps to create a frequency polygon.

Solve and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

A company has employee categories and their respective employees as follows: Sales (10), HR (15), IT (5), Operations (20). Create a frequency polygon and analyze what this might suggest about staffing.

πŸ’‘ Hint: Ensure you represent each category clearly on your graph.

Question 2

Construct a frequency polygon and interpret it based on the following data: 5 students scored between 0-10, 15 students between 10-20, and 10 students between 20-30. What does the resulting polygon tell us?

πŸ’‘ Hint: Look for the most elevated section in your polygon.

Challenge and get performance evaluation