Practice - Interquartile Range (IQR)
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Practice Questions
Test your understanding with targeted questions
Calculate the IQR for the dataset: 2, 5, 7, 10, 12.
💡 Hint: Order the dataset first and find Q1 and Q3.
What does it mean if the IQR is small?
💡 Hint: Think about how close data points are to each other.
4 more questions available
Interactive Quizzes
Quick quizzes to reinforce your learning
What does the IQR measure?
💡 Hint: Think about which part of the data is being considered.
True or False: A high IQR indicates low variability.
💡 Hint: Consider how spread out numbers affect variability.
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Challenge Problems
Push your limits with advanced challenges
You have two datasets: A - 2, 3, 5, 7, 11 and B - 1, 4, 4, 4, 10. Calculate the IQR for both and discuss the differences.
💡 Hint: Don't forget to sort both datasets before finding Q1 and Q3.
A teacher wants to find out the spread of grades in two classes. Class 1 has the following grades: 65, 78, 85, 90, 92. Class 2 has 55, 60, 85, 90, 95. Find the IQR for both classes.
💡 Hint: Remember to calculate quartiles for both after sorting.
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Reference links
Supplementary resources to enhance your learning experience.