SOLUTION: Whooping cough (pertussis) is a highly contagious bacterial infection that was a major cuase of childhood deaths before the development of vaccines. About 80% of unvaccinated child
Question 1176923: Whooping cough (pertussis) is a highly contagious bacterial infection that was a major cuase of childhood deaths before the development of vaccines. About 80% of unvaccinated children who are exposed to whooping cough will develop the infection, as opposed to only about 5% of vaccinated children.
A group of 5 vaccinated children at a nursery school are exposed to whooping cough by playing with an infected child. What is the probability that at least one of the 5 children develop an infection? Answer by ikleyn(52779) (Show Source): You can put this solution on YOUR website! .
The probability that at least one of the 5 vaccinated children will develop the infection is the COMPLEMENT
to the probability that NO ONE will develop the infection.
So the answer to the problem's question is P = 1 - = 1 - = 0.2262 = 22.62%. ANSWER