A teacher collected test scores from a class and found that the lower quartile (Q1) was 60 and the upper quartile (Q3) was 85. The Interquartile Range (IQR) of the test scores is _________.
Answer & Analysis
Analysis
Question Analysis
This question tests the student's ability to calculate the IQR in a real-world context, specifically with test scores.
Key Concept Explanation
The IQR is calculated as IQR = Q3 - Q1, where Q3 is the upper quartile and Q1 is the lower quartile.