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Directions: Select a single answer choice.


Q. Of the 40 specimens of bacteria in a dish, 3 specimens have a certain trait. If 5 specimens are to be selected from the dish at random and without replacement, which of the following represents the probability that only 1 of the 5 specimens selected will have the trait?

  • a)

  • b)

  • c)

  • d)

  • e)

Correct answer is option 'E'. Can you explain this answer?
Most Upvoted Answer
Directions: Select a single answer choice.Q. Of the 40 specimens of ba...
In the context of this problem represents the number of ways r specimens can be selected without replacement from n specimens.
The probability that only 1 of the 5 specimens selected from the 40 specimens will have the trait is equal to
number of ways to select 5 specimens, only 1 of which has the trait / number of ways to select 5 specimens
The number of ways 5 specimens can be selected from the 40 specimens is . To
select 5 specimens, only 1 of which has the trait, you have to select 1 of the 3 specimens that have the trait and select 4 of the 37 specimens that do not have the trait. The number of such selections is the product . So the probability that only 1 of the 5 specimens selected will have the trait is represented by . The correct answer is Choice E.
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Community Answer
Directions: Select a single answer choice.Q. Of the 40 specimens of ba...
In the context of this problem represents the number of ways r specimens can be selected without replacement from n specimens.
The probability that only 1 of the 5 specimens selected from the 40 specimens will have the trait is equal to
number of ways to select 5 specimens, only 1 of which has the trait / number of ways to select 5 specimens
The number of ways 5 specimens can be selected from the 40 specimens is . To
select 5 specimens, only 1 of which has the trait, you have to select 1 of the 3 specimens that have the trait and select 4 of the 37 specimens that do not have the trait. The number of such selections is the product . So the probability that only 1 of the 5 specimens selected will have the trait is represented by . The correct answer is Choice E.
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Directions: Select a single answer choice.Q. Of the 40 specimens of bacteria in a dish, 3 specimens have a certain trait. If 5 specimens are to be selected from the dish at random and without replacement, which of the following represents the probability that only 1 of the 5 specimens selected will have the trait?a)b)c)d)e)Correct answer is option 'E'. Can you explain this answer?
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Directions: Select a single answer choice.Q. Of the 40 specimens of bacteria in a dish, 3 specimens have a certain trait. If 5 specimens are to be selected from the dish at random and without replacement, which of the following represents the probability that only 1 of the 5 specimens selected will have the trait?a)b)c)d)e)Correct answer is option 'E'. Can you explain this answer? for GRE 2024 is part of GRE preparation. The Question and answers have been prepared according to the GRE exam syllabus. Information about Directions: Select a single answer choice.Q. Of the 40 specimens of bacteria in a dish, 3 specimens have a certain trait. If 5 specimens are to be selected from the dish at random and without replacement, which of the following represents the probability that only 1 of the 5 specimens selected will have the trait?a)b)c)d)e)Correct answer is option 'E'. Can you explain this answer? covers all topics & solutions for GRE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Directions: Select a single answer choice.Q. Of the 40 specimens of bacteria in a dish, 3 specimens have a certain trait. If 5 specimens are to be selected from the dish at random and without replacement, which of the following represents the probability that only 1 of the 5 specimens selected will have the trait?a)b)c)d)e)Correct answer is option 'E'. Can you explain this answer?.
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