Concept explainers
Conditional Relative Frequencies In Exercises 37−42, use the
Relative frequencies can also be calculated based on the row totals (by dividing each row entry by the row’s total) or the column totals (by dividing each column entry by the column’s total). These frequencies are conditional relative frequencies and can be used to determine whether an association exists between two categories in a contingency table.
40. Calculate the conditional relative frequencies in the contingency table based on the column totals.
Contingency Tables and Relative Frequencies In Exercises 33−36, use the information below.
The frequencies in a contingency table can be written as relative frequencies by dividing each frequency by the
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Elementary Statistics: Picturing the World (7th Edition)
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