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A research scientist wants to study a certain attribute of dogs. It i
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02 Jun 2021, 08:59
02 Jun 2021, 08:59
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78% (00:59) correct
21% (01:08) wrong based on 14 sessions
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A research scientist wants to study a certain attribute of dogs. It is estimated that approximately 5 percent of all dogs have this attribute. If the scientist wants to study a sample of N dogs having the attribute, approximately how many dogs should be screened in order to obtain the desired sample size?
(A) N/5
(B) 5N
(C) 2ON
(D) 105N
(E) 120N
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
(A) N/5
(B) 5N
(C) 2ON
(D) 105N
(E) 120N
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Re: A research scientist wants to study a certain attribute of dogs. It i
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02 Jun 2021, 20:29
02 Jun 2021, 20:29
1
5 percent of all dogs have this attribute.
If the scientist wants to study a sample of \(N\) dogs having the attribute.
\(N\) dogs are 5% of the lot.
So total need to be \(20N\) so 5% of \(20N\) will be \(N\).
Answer C
If the scientist wants to study a sample of \(N\) dogs having the attribute.
\(N\) dogs are 5% of the lot.
So total need to be \(20N\) so 5% of \(20N\) will be \(N\).
Answer C
Re: A research scientist wants to study a certain attribute of dogs. It i
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22 Jan 2023, 12:04
22 Jan 2023, 12:04
Carcass wrote:
A research scientist wants to study a certain attribute of dogs. It is estimated that approximately 5 percent of all dogs have this attribute. If the scientist wants to study a sample of N dogs having the attribute, approximately how many dogs should be screened in order to obtain the desired sample size?
(A) N/5
(B) 5N
(C) 2ON
(D) 105N
(E) 120N
Kudos for the right answer and explanation
Question part of the project GRE - Math Book[/url]
(A) N/5
(B) 5N
(C) 2ON
(D) 105N
(E) 120N
Kudos for the right answer and explanation
Question part of the project GRE - Math Book[/url]
Today came across a similar problem. The correct answer would be C 20N
