What are quartiles in statistics?
Quartiles are values that divide a dataset into four equal parts, helping to understand data distribution.
How do you calculate the first, second, and third quartiles?
To calculate quartiles, first sort the data. The first quartile (Q1) is the median of the first half, Q2 is the median, and Q3 is the median of the second half.
Can you give me an example with numbers?
Sure! For the dataset [1, 3, 5, 7, 9], Q1 is 3, Q2 is 5, and Q3 is 7.
What is the significance of quartiles in data analysis?
Quartiles help identify the spread and center of data, making it easier to detect outliers and understand variability.
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