MAT 202 EXAMINING RELATIONSHIPS CHECKPOINT 2 (Straighterline)

EXAMINING RELATIONSHIPS CHECKPOINT 2 Step 1 of 1 Question 1 of 7 Seat belts are supposed to save lives. Here are the results of a 1988 study of accident records conducted by the Florida State Department of Highway Safety. The researchers classified people in vehicles involved in accidents as having worn seat belts or not. The following two-way table gives the results of the study: Accident Nonfatal Seat Belt? Yes No Total 574,895 In this example, it would be appropriate to calculate: the five-number summary of both variables the correlation coefficient r conditional column percentages conditional row percentages none of the above Good job! To explore a relationship between two categorical variables, the most appropriate summary is the outcome percentages within each explanatory group. In this case, the row variable (seat belt) would be the explanatory variable, so the appropriate percentages are the seat belt percentages from each accident group.