Practice Exercise 14.3 - 10 | Chapter 4 : Statistics | CBSE Class 9 Maths
K12 Students

Academics

AI-Powered learning for Grades 8–12, aligned with major Indian and international curricula.

Academics
Professionals

Professional Courses

Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.

Professional Courses
Games

Interactive Games

Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβ€”perfect for learners of all ages.

games

Practice Questions

Test your understanding with targeted questions related to the topic.

Question 1

Easy

What is a grouped frequency table?

πŸ’‘ Hint: Think about how we organize data into intervals.

Question 2

Easy

Why do we use histograms?

πŸ’‘ Hint: Consider how bars can show frequency.

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 does a grouped frequency table display?

  • Data points individually
  • Frequencies across intervals
  • Just averages

πŸ’‘ Hint: Focus on what grouping achieves.

Question 2

True or False: A histogram has gaps between the bars.

  • True
  • False

πŸ’‘ Hint: Consider what gaps would imply about data type.

Solve 2 more questions and get performance evaluation

Challenge Problems

Push your limits with challenges.

Question 1

Create a grouped frequency table for the following set of temperatures recorded over a week: 18, 20, 22, 19, 21, 25, 24, 23, 20, 18. Use 18-20, 21-23, 24-26 as intervals.

πŸ’‘ Hint: Count how many temperatures are in each interval.

Question 2

Design a histogram based on the grouped age of participants in a survey, showing age intervals 10-20, 21-30, and how many were surveyed in each group.

πŸ’‘ Hint: Identify how many fall into each age group.

Challenge and get performance evaluation