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In a certain population, the probability that a randomly selected subject will have been exposed to a certain allergen and experience a reaction to the allergen is .60. The probabil- ity is .8 that a subject exposed to the allergen will experience an allergic reaction. If a subject is selected at random from this population, what is the probability that he or she will have been exposed to the allergen?

In a certain population, the probability that a randomly selected subject will have been exposed to a certain allergen and experience a reaction to the allergen is .60. The probabil- ity is .8 that a subject exposed to the allergen will experience an allergic reaction. If a subject is selected at random from this population, what is the probability that he or she will have been exposed to the allergen?

Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
Problem 47RE
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10. Do the problem #9 on page 78 in the Chapter 3 Review questions and exercises starting on page 76. E= Ex posed R=Reaction PCEÄN= P(Ex pused and Reachon) = 0.60 PCRTE) = P (Recvction given Want to find PCE)= P (Expused) Cover Ex posea) = 0,80 Ven and ニ P (E) P(o180)= P(0.60) P(o.80)- P(o.60) 0.80X = O.60 O180 O,80 X =0.75 Probability that he or she will have been Eyposed to the Allegen = Di75
Transcribed Image Text:10. Do the problem #9 on page 78 in the Chapter 3 Review questions and exercises starting on page 76. E= Ex posed R=Reaction PCEÄN= P(Ex pused and Reachon) = 0.60 PCRTE) = P (Recvction given Want to find PCE)= P (Expused) Cover Ex posea) = 0,80 Ven and ニ P (E) P(o180)= P(0.60) P(o.80)- P(o.60) 0.80X = O.60 O180 O,80 X =0.75 Probability that he or she will have been Eyposed to the Allegen = Di75
9. In a certain population, the probability that a randomly selected subject will have been exposed to a certain allergen and experience a reaction to the allergen is .60. The probabil- ity is .8 that a subject exposed to the allergen will experience an allergic reaction. If a subject is selected at random from this population, what is the probability that he or she will have been exposed to the allergen?
Transcribed Image Text:9. In a certain population, the probability that a randomly selected subject will have been exposed to a certain allergen and experience a reaction to the allergen is .60. The probabil- ity is .8 that a subject exposed to the allergen will experience an allergic reaction. If a subject is selected at random from this population, what is the probability that he or she will have been exposed to the allergen?
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