Mathematics, 18.04.2020 04:36 genyjoannerubiera
Whooping cough (pertussis) is a highly contagious bacterial infection that was a major cause of childhood deaths before the development of vaccines. About 80 % of unvaccinated children who are exposed to whooping cough will develop the infection, as opposed to only about 5% of vaccinated children. A group of 20 children at a nursery school is exposed to whooping cough by playing with an infected child.
(a) If all 20 have been vaccinated, what is the mean number of new infections?
(b) What is the probability that no more than 2 of the 20 children develop infections if all 20 have been vaccinated?
Answers: 2
Mathematics, 21.06.2019 13:30
∠1 and ∠2 are complementary. ∠1=x°∠2=(3x+30)° select from the drop down menu to correctly answer the question. what is the value of x? . a.15 b.25 c.30 d.40 e.55
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Mathematics, 21.06.2019 16:20
To prove that def ~ gfh by the sss similarity theorem using the information provided in the diagram, it would be enough additional information to know that
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Whooping cough (pertussis) is a highly contagious bacterial infection that was a major cause of chil...
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