Three million people in Sweden are trained in CPR, which is more than 30% of the population.

Question:

Three million people in Sweden are trained in CPR, which is more than 30% of the population. The data set is summarized below. A 2015 study by Hasselqvist-Ax et. al reported in the New England Journal of Medicine examined the relationship between bystander CPR (Cardio Pulmonary Resuscitation) and positive outcomes for out-of hospital cardiac arrest cases. Researchers collected data on whether or not the victim received CPR from a bystander and whether or not the victim survived. The results are shown in the following table.