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5 cards from this section. Quick, good the night before a test.
What is an outlier?
Think about values that stand out in a dataset.
Name one method for detecting outliers.
Consider visual methods.
What is a possible sign of an outlier in a box plot?
Visualize a box plot.
True or False: Using Z-scores requires knowledge of the mean and standard deviation.
Remember what Z-scores quantify.
Given a dataset of house prices with values ranging from $150,000 to $1,500,000, how would you detect and treat outliers? Discuss your approach.
Consider both visual and statistical methods for identifying outliers.
You are working with a dataset that has performance metrics for a sales team. If one representative has far higher sales than the others, how would you address this? Discuss the analysis and treatment options.
Think about the implications of removing or treating an outlier in the analysis.
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