X 4.5.31 Assigned Media | Question Help * Testing for a disease can be made more
ID: 3320883 • Letter: X
Question
X 4.5.31 Assigned Media | Question Help * Testing for a disease can be made more efficient by combining samples. If the samples from six people are combined and the mixture tests negative, then all six samples are negative. On the other hand, one positive sample wil always test positive, no matter how many negative samples it is mixed with. Assuming the probability of a single sample testing positive is 0.1, find the probability of a positive result for six samples combined into one mixture. Is the probability low enough so that further testing of the individual samples is rarely necessary?Explanation / Answer
probability of a positive test result =1-P(all testing samples are negative ) =1-(0.9)6 =0.469
option C is correct
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.