AP®︎ Statistics (pre-2026): Topic 2.3 Flashcards

Master key terms and definitions for Topic 2.3 of AP Statistics (pre-2026) – Statistics for Two Categorical Variables to help you prep for quizzes and the AP exam.


This course has been archived. The College Board updated AP Statistics for the 2026–27 school year, and the units and topics changed.
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Term

Marginal Relative Frequency

Definition

A row or column total divided by the grand total in a two-way table.

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Marginal Relative Frequency
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A row or column total divided by the grand total in a two-way table.

UNC-1.QUNC-1.Q.1
Conditional Relative Frequency
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A cell count divided by its row or column total, given one category.

UNC-1.QUNC-1.Q.2
Association vs. Independence in a Two-Way Table
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Variables are associated when conditional relative frequencies differ and independent when they are the same.

UNC-1.RUNC-1.R.1