The Centers for Disease Control and Prevention reports that the rate of Chlamydia infections among U.S. women ages 20 to 24 is 2791.5 per 100,000. Take a random sample of three U.S. women in this age group.
What is the probability that all three women have a Chlamydia infection?

Question

Quizplus · Accepted Answer

The probability of one woman in this age group having a Chlamydia infection is 2791.5 per 100,000, or 0.027915. For all three women to have an infection, multiply this probability three times (0.027915 * 0.027915 * 0.027915), which results in a very small number, indicating that the probability is nearly 0.

The Centers for Disease Control and Prevention Reports That the Rate