2.1.4 - Computing Mean from Grouped Data
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Practice Questions
Test your understanding with targeted questions
Explain the concept of grouped data in your own words.
💡 Hint: Think about why we group data.
What is the formula for calculating mean in the direct method?
💡 Hint: Remember the roles of f and N.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the formula for the direct method of calculating mean in grouped data?
💡 Hint: Remember we want to calculate the average.
True or False: The mean computed using direct and indirect methods always results in different values.
💡 Hint: Think about the nature of averages.
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Challenge Problems
Push your limits with advanced challenges
You have the following frequency distribution: [A: 5, B: 10, C: 20]. Calculate the mean using both methods and analyze the differences.
💡 Hint: Check calculations step by step!
Given grouped data intervals of [1-5, 6-10, 11-15] with respective frequencies of [4, 8, 10], compute the mean using indirect method and discuss the implications.
💡 Hint: Deviations from assumed mean are key here!
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