AP®︎ Statistics (pre-2026): Topic 8.4 Flashcards

Master key terms and definitions for Topic 8.4 of AP Statistics (pre-2026) – Expected Counts in Two-Way Tables 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This course has been archived.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

Expected Count in a Two-Way Table

Definition

The predicted cell frequency if row and column variables are independent or distributions are the same.

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Expected Count in a Two-Way Table
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The predicted cell frequency if row and column variables are independent or distributions are the same.

VAR-8.H
Expected Count Formula
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Multiply the row total by the column total, then divide by the table total.

VAR-8.HVAR-8.H.1
Expected Counts Matrix
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A table of expected frequencies found by applying the expected count formula to every cell.

VAR-8.H
Chi-Square Test for Homogeneity
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Compares one categorical variable's distribution across two or more independent populations or groups.

VAR-8.H
Chi-Square Test for Independence
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Tests whether two categorical variables are associated within a single population.

VAR-8.H