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Practice Questions
Test your understanding with targeted questions related to the topic.
Question 1
Easy
Calculate the IQR for the dataset: 2, 5, 7, 10, 12.
💡 Hint: Order the dataset first and find Q1 and Q3.
Question 2
Easy
What does it mean if the IQR is small?
💡 Hint: Think about how close data points are to each other.
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 the IQR measure?
- The average of the dataset
- The spread of the middle 50% of the data
- The maximum value in the dataset
💡 Hint: Think about which part of the data is being considered.
Question 2
True or False: A high IQR indicates low variability.
- True
- False
💡 Hint: Consider how spread out numbers affect variability.
Solve and get performance evaluation
Challenge Problems
Push your limits with challenges.
Question 1
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.
Question 2
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.
Challenge and get performance evaluation