5.2.1.2.2.1 - Direct Method
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Practice Questions
Test your understanding with targeted questions
What is a class interval?
💡 Hint: Think about how scores are categorized.
How do you calculate the mid value of a class interval?
💡 Hint: What is the formula for finding an average?
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the purpose of the Direct Method?
💡 Hint: Consider what we're trying to achieve with grouped data.
The mid value is found by which of the following?
💡 Hint: Think back to how we computed mid values.
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Challenge Problems
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A class of 80 students scored between 0 to 70. Class intervals are 0-10, 10-20 up to 60-70 with respective frequencies. Calculate the average using the Direct Method.
💡 Hint: Don't forget to sum your mid values multiplied by frequencies.
Discuss how you would approach analyzing a dataset with several outliers. How would this affect your average?
💡 Hint: Use examples to illustrate how averages can be affected by extreme values.
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