EDA Diagnostic Cards
Recall which EDA diagnostic to use before trusting a summary, model, or chart.
flashcard-deck compare-card battlecard stat-tile-trio Which EDA check comes before trusting an average? Inspect the distribution with a histogram, boxplot, or quantiles. Means are fragile when data is skewed or dominated by outliers. Use a time plot or a histogram? Use a time plot for process change; use a histogram for distribution shape. Many EDA passes need both: time for process, distribution for summary risk. Stakeholder says: the correlation is high, so the relationship is obvious. I will plot the points first because one outlier or segment split can create a high correlation. The correlation is high, so the relationship is…
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