1. 1. The American Journal of Public Health (July 1995) published a study of the relationship between passive smoking and nasal allergies in Japanese female students. The study revealed that 80% of students from heavy-smoking families showed sign of nasal allergies on physical examinations. Consider a sample of 20 Japanese female students exposed daily to heavy smoking. a. What is the probability that fewer than 15 of the students will have nasal allergies? b. What is the probability that more than 10 of the students will have nasal allergies? c. What is the probability that exactly 10 of the students will have a nasal allergy? wal-ni-19dromn riorti sliteib ed
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
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1)
Given,
The study revealed that 80% of students from heavy-smoking families showed sign of natural allergies on physical examination.
Consider a sample of 20 Japanese female students exposed daily to heavy smoking
p=0.8
n=20
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