38-stats

38-stats - C hapter 5: Contingency Table : a table that...

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Chapter 5: Contingency Table : a table that shows counts of the cases of one categorical variable contingent on the value of another Mutually exclusive: the cells of a contingency table are mutually exclusive if each case appears in only one cell of the table. Conditional distribution : the distribution of a variable restricted to cases that satisfy a condition such as those in a row or column of a contingency table -refers to counts within a row or column Associated : two categorical variables are associated if the conditional distribution of one variable depends on the value of the other. -they are associated if the column percentages vary from column to column (or if the row percentages vary from row to row) Lurking variable: a concealed variable that affects the apparent relationship between two other variables Chi-Squared: a statistic that measures association in a contingency table; larger values of chi- squared indicate more association --quantifies the degree of association --the larger chi squares become, the greater the amount of association
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38-stats - C hapter 5: Contingency Table : a table that...

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