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. What is the probability that fewer than 15 of the students will have nasal allergies? X<13 n=20, P=0.808 I =<15 a. b. What is the probability that more than 10 of the students will have nasal allergies? X > O c. What is the probability that exactly 10 of the students will have a nasal allergy?
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. What is the probability that fewer than 15 of the students will have nasal allergies? X<13 n=20, P=0.808 I =<15 a. b. What is the probability that more than 10 of the students will have nasal allergies? X > O c. What is the probability that exactly 10 of the students will have a nasal allergy?
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.8: Probabilities Of Disjoint And Overlapping Events
Problem 2C
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Let us denote X=The number of students who showed sign of nasal allergies
n=sample size=20
p=probability of success=80%=0.80
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