GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
The odds that a randomly selected male doctor at hospital Y
[#permalink]
21 Apr 2019, 11:13
21 Apr 2019, 11:13
Expert Reply
00:00
Question Stats:
40% (02:05) correct
60% (02:01) wrong based on 10 sessions
Hide Show timer Statistics
Attachment:
#GREpracticequestion The odds that a randomly selected male doctor.jpg [ 80.42 KiB | Viewed 2155 times ]
The odds that a randomly selected male doctor at hospital Y is a surgeon is what percent larger than the odds he is an obstetrician?
A. 34 %
B. 60 %
C. 63 %
D. 100 %
E. 170 %
Re: The odds that a randomly selected male doctor at hospital Y
[#permalink]
21 Apr 2019, 12:10
21 Apr 2019, 12:10
I don't get this one at all. Can anybody explain?
Re: The odds that a randomly selected male doctor at hospital Y
[#permalink]
21 Apr 2019, 12:47
21 Apr 2019, 12:47
Expert Reply
There are two kinds of surgery specialties (General Surgery and Orthopedic Surgery), but the question does not specify one or the other, so we need to add them together.
The odds are 20% that a male doctor is a general surgeon, and 7% that he is an orthopedic surgeon. All told, the odds are 27% that he is a surgeon.
From the chart again, the odds are 10% that he is in Obstetrics.
To calculate the percentage larger one number is over another, take the difference of the two numbers and divide by the smaller number, then convert to a percentage. In our case, take 27 - 10 = 17. Then divide by the smaller number, 10, to yield 1.7. Convert to a percentage by multiplying by 100: the odds are 170% greater that the random doctor will be a surgeon.
Hope this helps out.
Regards
The odds are 20% that a male doctor is a general surgeon, and 7% that he is an orthopedic surgeon. All told, the odds are 27% that he is a surgeon.
From the chart again, the odds are 10% that he is in Obstetrics.
To calculate the percentage larger one number is over another, take the difference of the two numbers and divide by the smaller number, then convert to a percentage. In our case, take 27 - 10 = 17. Then divide by the smaller number, 10, to yield 1.7. Convert to a percentage by multiplying by 100: the odds are 170% greater that the random doctor will be a surgeon.
Hope this helps out.
Regards
