GMAT Question of the Day - Daily to your Mailbox; hard ones only

It is currently 24 Aug 2019, 11:11

Close

GMAT 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

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Close

Request Expert Reply

Confirm Cancel

It is logical to conclude that it is more dangerous

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:

Hide Tags

Find Similar Topics 
Intern
Intern
avatar
Joined: 31 Jul 2014
Posts: 12
It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 18 May 2015, 03:09
14
00:00
A
B
C
D
E

Difficulty:

  45% (medium)

Question Stats:

58% (01:26) correct 42% (02:00) wrong based on 398 sessions

HideShow timer Statistics

It is logical to conclude that it is more dangerous to drive an automobile than to ride a motorcycle. After all, the National Safety Council estimates that one person in 19000 will die each year as a passenger in an automobile, while only one out of every 73000 will be killed as a motorcyclist.

Which of the following studies would be most useful in assessing the validity of the argument above?

(A) Comparing the NSC's statistics with those of other nations where traffic laws and conditions are similar
(B) Expressing the difference between the probability of deaths among automobile and motorcyclists
(C) Separating the odds of death due to illegal operating vehicles
(D) Comparing death rates per thousand members of each group rather than comparing total number of deaths
(E) Comparing the number of deaths on highways versus that on city roads

Need some elaboration pls..
Manager
Manager
User avatar
Joined: 12 Jan 2015
Posts: 195
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 24 Feb 2016, 13:41
Hi chetan2u,

Can you please tell with an example how is D correct. According to me it a correct reasoning behind making a conclusion. I know I am missing something.

If I go to purchase a vehicle and someone says according to survey -
1) 1 out of every 19000 is dead in car accident
2) 1 out of every 73000 is dead in motorcycle accident.
Conclusion- So, I should purchase car as I will be more safe.

Where is my reasoning wrong.
Please help.
_________________
Thanks and Regards,
Prakhar
Manager
Manager
User avatar
Joined: 12 Jan 2015
Posts: 195
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 25 Feb 2016, 00:16
Hi carcass / aditya8062 / mikemcgarry / daagh /VeritasPrepKarishma,

Could you please share your reasoning behind this CR
How could the ans be D.

Will we waiting for your assistance
_________________
Thanks and Regards,
Prakhar
Math Expert
User avatar
V
Joined: 02 Aug 2009
Posts: 7754
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 25 Feb 2016, 00:30
2
1
PrakharGMAT wrote:
Hi carcass / aditya8062 / mikemcgarry / daagh /VeritasPrepKarishma,

Could you please share your reasoning behind this CR
How could the ans be D.

Will we waiting for your assistance



hi,
I missed out reading one word in a hurry and it resulted in understanding the Q wrongly..
so why D is the answer....


the para says that one in 19,000 people die in car accident..
the para then says that 1 out of 73000 people is likely to die in motor accident..
so he concludes that car travel is unsafe..


It may be possible that most of the person travel by car and that is why we are having the ratio higher for car..
an example..
population is 73000..
there is one death in motorcyle accident, and almost 4 deaths in car accident..
one would say car travel is unsafe..
but if only one person was driving motorcycle and he died..
and 10,000 were travelling in a car and 4 died..
of course motorcycle travel is unsafe ..

that is why D is correct..
we are asking for ratio of deaths per thousand in that category..
this will give us a clearer picture..

_________________
Manager
Manager
User avatar
Joined: 12 Jan 2015
Posts: 195
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 25 Feb 2016, 00:42
Ammmm........

Now I got the reasoning behind it.. Thank you for explanation chetan2u.
This question really sucked me.....
Thanks again :D
_________________
Thanks and Regards,
Prakhar
Manager
Manager
User avatar
Joined: 12 Jan 2015
Posts: 195
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 25 Feb 2016, 00:45
chetan2u

Can you please reply for PM as well that I sent you..
_________________
Thanks and Regards,
Prakhar
Senior SC Moderator
User avatar
V
Joined: 14 Nov 2016
Posts: 1323
Location: Malaysia
GMAT ToolKit User
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 28 Apr 2017, 06:15
inboxsaukar wrote:
It is logical to conclude that it is more dangerous to drive an automobile than to ride a motorcycle. After all, the National Safety Council estimates that one person in 19000 will die each year as a passenger in an automobile, while only one out of every 73000 will be killed as a motorcyclist.

Which of the following studies would be most useful in assessing the validity of the argument above?

A) Comparing the NSC's statistics with those of other nations where traffic laws and conditions are similar
B) Expressing the difference between the probability of deaths among automobile and motorcyclists
C) Separating the odds of death due to illegal operating vehicles
D) Comparing death rates per thousand members of each group rather than comparing total number of deaths
E) Comparing the number of deaths on highways versus that on city roads


You were likely able to expose the flaw in the question above: Not nearly as many people ride motorcycles as drive cars, so of course more people are killed in cars than on motorcycles. The sample sizes for each group are wildly incongruent; the argument is like saying that you are more likely to be injured while walking than while taming a lion. True—but walking is still safer. We just do that so much more than we tame lions that the absolute numbers won’t be representative of the risk.

When sample sizes are incongruent, a better comparison comes from taking the per-capita rate (how many from each group) than taking the absolute numbers. And that is what answer choice D correctly does: It standardizes the comparison by expressing the probability on the basis of 1,000 members of each group, and not as a probability of the population (which likely includes billions who do not ride motorcycles) as a whole. Beware of answer choice B. If you read it quickly, you might think it would give the necessary information to properly assess the argument, but it still is not breaking apart the groups and giving the necessary per capita information for each group separately. It is yet another example of a cleverly repackaged premise; the study would not give you any new information.
_________________
"Be challenged at EVERY MOMENT."

“Strength doesn’t come from what you can do. It comes from overcoming the things you once thought you couldn’t.”

"Each stage of the journey is crucial to attaining new heights of knowledge."

Rules for posting in verbal forum | Please DO NOT post short answer in your post!

Advanced Search : https://gmatclub.com/forum/advanced-search/
Senior Manager
Senior Manager
avatar
P
Joined: 02 Apr 2014
Posts: 471
Location: India
Schools: XLRI"20
GMAT 1: 700 Q50 V34
GPA: 3.5
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 27 Feb 2018, 06:09
chetan2u wrote:
PrakharGMAT wrote:
Hi carcass / aditya8062 / mikemcgarry / daagh /VeritasPrepKarishma,

Could you please share your reasoning behind this CR
How could the ans be D.

Will we waiting for your assistance



hi,
I missed out reading one word in a hurry and it resulted in understanding the Q wrongly..
so why D is the answer....


the para says that one in 19,000 people die in car accident..
the para then says that 1 out of 73000 people is likely to die in motor accident..
so he concludes that car travel is unsafe..


It may be possible that most of the person travel by car and that is why we are having the ratio higher for car..
an example..
population is 73000..
there is one death in motorcyle accident, and almost 4 deaths in car accident..
one would say car travel is unsafe..
but if only one person was driving motorcycle and he died..
and 10,000 were travelling in a car and 4 died..
of course motorcycle travel is unsafe ..

that is why D is correct..
we are asking for ratio of deaths per thousand in that category..
this will give us a clearer picture..


Hi chetan2u,

Is n't one in 19000 and one in every 73000 already giving an ratio?

Please help

thanks
Intern
Intern
avatar
B
Joined: 07 Jan 2018
Posts: 8
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 28 Feb 2018, 08:07
D is my answer.

Followed the elimination technique. It is easier to eliminate A,B,C and E rather than selecting D.
Senior Manager
Senior Manager
User avatar
G
Joined: 14 Feb 2018
Posts: 389
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 01 Mar 2018, 01:01
According to me A is the correct answer because according to option D the argument compares the total no. of deaths, but actually the argument is stating in fraction terms or more accurately a probability.

So, how can option D be right when the argument does not compare total no. of deaths ??

Please explain to me.

Regards,
Sonal

Sent from my Lenovo K53a48 using GMAT Club Forum mobile app
Non-Human User
User avatar
Joined: 01 Oct 2013
Posts: 5232
Re: It is logical to conclude that it is more dangerous  [#permalink]

Show Tags

New post 16 Jul 2019, 19:43
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________
GMAT Club Bot
Re: It is logical to conclude that it is more dangerous   [#permalink] 16 Jul 2019, 19:43
Display posts from previous: Sort by

It is logical to conclude that it is more dangerous

  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics  





Powered by phpBB © phpBB Group | Emoji artwork provided by EmojiOne