school
Acemy

Setting Up a Chi-Square Test for Homogeneity or Independence

AP Statistics· difficulty 3/5

Two categorical variables are independent if all conditional distributions of one variable across levels of the other are equal.

Independence vs Association Independent: conditional dist's equal Associated: conditional dist's differ Which sign indicates an association?

Which sign indicates that two categorical variables are NOT independent?

  • A

    Equal column totals

  • B

    Equal row totals

  • C

    A grand total of 100

  • D

    Different conditional distributions across rows

    check_circle

Explanation

Differences in conditional distributions reveal an association between the categorical variables.

Want 10 more like this — adaptive to your weak spots?

Practice 10 like thisarrow_forwardPredict my AP score

Related questions

auto_awesomeAll Toolsquestion_answerHomework Q&Amenu_bookAP & SAT PreptimelineLearn Mode