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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
What is the class mark of the interval 20 - 30?
💡 Hint: It's the average of the two limits.
Question 2
Easy
Why do we group data?
💡 Hint: Think about managing large datasets.
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 class mark of a class interval 30-40?
- 30
- 35
- 40
💡 Hint: Use (Lower + Upper) / 2 formula.
Question 2
The Step-Deviation Method uses what to simplify calculations?
- True
- False
💡 Hint: What role does class size play in this method?
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
Given class intervals 0-10, 10-20, and their respective frequencies 5, 10. Calculate mean using Direct Method.
💡 Hint: Remember to find each interval’s class mark.
Question 2
How does the choice of assumed mean affect the accuracy of calculations in grouped data?
💡 Hint: Analyze the data to select an ideal assumed mean.
Challenge and get performance evaluation