Quartile Calculator
Understanding Quartiles and IQR
What are Quartiles?
Quartiles divide a dataset into four equal parts, providing key insights about data distribution. The three quartile points are:
- First Quartile (Q1): 25th percentile
- Second Quartile (Q2): 50th percentile (median)
- Third Quartile (Q3): 75th percentile
What is IQR?
The Interquartile Range (IQR) is the difference between Q3 and Q1, representing the middle 50% of the data. It's particularly useful for:
- Measuring data spread
- Identifying outliers
- Comparing datasets