Cause of Death According to the U. S. National Center for Health Statistics, 0.15% of deaths in the United States are 25- to 34-year-olds whose cause of death is cancer. In addition, 1.71% of all those who die are 25–34 years old. What is the probability that a randomly selected death is the result of cancer if the individual is known to have been 25–34 years old?