What are outliers in boxplots?
Outliers in boxplots are data points that fall significantly outside the interquartile range (IQR). They can indicate variability or errors.
How do you identify outliers using a boxplot?
You identify outliers by calculating the IQR, which is the difference between the first quartile (Q1) and the third quartile (Q3). Any point below Q1 - 1.5IQR or above Q3 + 1.5IQR is considered an outlier.
Can you give me an example of a boxplot with outliers?
Sure! Imagine a boxplot where the box ranges from 10 to 20, with a whisker extending to 25. If there's a point at 30, that would be an outlier.
What should I do if I find outliers in my data?
You can investigate the outliers to determine if they are errors, or if they represent valid extreme values. Depending on your analysis, you might choose to remove them or keep them.
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