The American Journal of Public Health published a study of t…
The American Journal of Public Health published a study of the relationship between passive smoking and nasal allergies in Japanese female students. The study revealed that 80% (i.e., p = 0.80) of the students from heavy-smoking families showed signs of nasal allergies on physical examinations. Consider a sample of 10 Japanese female students exposed daily to heavy smoking in their families. What is the probability that at least 7 (i.e., 7 or more) of the 10 students will have nasal allergies?