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Compare differences between groups or conditions

e.g., Comparing exam scores between online and in-person students

Examine relationships or predict outcomes between variables

e.g., Seeing if study hours predict final exam grades

Compare observed categories with expected frequencies

e.g., Does the number of students choosing each major match the university's expected split?

Analyze time until an event happens

e.g., Time to relapse, time to graduation, time to employee turnover