Why are outliers important in data analysis?
Outliers can provide valuable insights, indicating variability in data, potential errors, or novel phenomena.
Can you give an example of an outlier affecting results?
Sure! In a study measuring human heights, a person at 7 feet tall would be an outlier, skewing average height calculations.
How do outliers impact statistical models?
Outliers can distort statistical measures like mean and standard deviation, leading to misleading conclusions.
Should we always remove outliers from our data?
Not necessarily. It depends on the context; sometimes outliers are crucial for understanding the data.
What methods can we use to detect outliers?
Common methods include Z-scores, IQR (Interquartile Range), and visualizations like box plots.
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