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
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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? X15
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
What is the probability that exactly 10 of the students will have a nasal allergy?
с.
slifeib meb to 95id nadi stom
Transcribed Image Text: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? X15 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 What is the probability that exactly 10 of the students will have a nasal allergy? с. slifeib meb to 95id nadi stom
Expert Solution
Step 1

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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