Avandia Is an Antidiabetic Drug And, Like All Drugs, It

Avandia is an antidiabetic drug and, like all drugs, it can have side effects. One study of patients with congestive heart failure found that 5 of the 110 subjects randomly assigned to take Avandia died of a cardiovascular event during the duration of the study, compared with 4 of the 114 subjects assigned to the placebo. The research question is "Is there evidence that patients with congestive heart failure have a higher probability of dying of a cardiovascular event if they take Avandia than if they take a placebo?" What is the pooled proportion of subjects who died of a cardiovascular event during the study?

A) 0.0402
B) 0.0450
C) 0.0482
D) 0.0500