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.
Assuming that 80 percent of all deaths due to pneumonia or i
[#permalink]
13 Aug 2020, 02:58
13 Aug 2020, 02:58
Expert Reply
1
Bookmarks
00:00
Question Stats:
39% (02:48) correct
60% (03:24) wrong based on 48 sessions
Hide Show timer Statistics
Assuming that 80 percent of all deaths due to pneumonia or influenza occur among the elderly, defined as those age 65 and over, in which city was the least proportion of all deaths among the elderly attributed to pneumonia or influenza?
A. Houston
B. Indianapolis
C. Honolulu
D. Boston
E. Los Angeles
KUDOS for the right solution and explanation
Re: Assuming that 80 percent of all deaths due to pneumonia or i
[#permalink]
03 Sep 2020, 03:48
03 Sep 2020, 03:48
4
Elderly death by pneumonia or influenza=.8*3532=2826
elderly death attributed to houston=.19*2826=536, los angels=.38*2826=1073, honolulu=367, boston=508...
elderly death ratio to all death for houston=536/13000=.041, los angels=1073/9000=.12, honolulu=367/3000=.1223, boston=508/5000
so least proportion is for Houston. Answer is A.
#SakibAtiq
elderly death attributed to houston=.19*2826=536, los angels=.38*2826=1073, honolulu=367, boston=508...
elderly death ratio to all death for houston=536/13000=.041, los angels=1073/9000=.12, honolulu=367/3000=.1223, boston=508/5000
so least proportion is for Houston. Answer is A.
#SakibAtiq
Retired Moderator
Joined: 10 Apr 2015
Posts: 6218
Given Kudos: 136
Re: Assuming that 80 percent of all deaths due to pneumonia or i
[#permalink]
29 Dec 2020, 14:34
29 Dec 2020, 14:34
2
Gocha wrote:
GreenlightTestPrep wrote:
Gocha wrote:
Hi,
I am trying to understand what this question asks, why we do not have to add deaths of non elderly people from division ?
(Ex, 13000 for houston is the number of only elderly people and is not including the number of deaths of none elderly people.)
Best,
Gocha
I am trying to understand what this question asks, why we do not have to add deaths of non elderly people from division ?
(Ex, 13000 for houston is the number of only elderly people and is not including the number of deaths of none elderly people.)
Best,
Gocha
The pie chart tells us that 12% of the 3532 pneumonia/influenza deaths occurred in Houston.
That works out to about 424 deaths from pneumonia or influenza in Houston.
These 424 consisted of both elderly and non-elderly people.
The question asks to assume that 80 percent of all deaths due to pneumonia or influenza occur among the ELDERLY.
80% of 424 = 339.
So, 339 ELDERLY people in Houston died from pneumonia or influenza in Houston.
In the same year, about 13,000 ELDERLY people in Houston died
So, the ratio = 339/13,000
Hi GreenLightTestPrep,
Thank you for replying, I may be miss understanding this question, but why we can divide by 13,000 ?
The question was not clear to me whether we should divide by 13,000 or we should divide by 25,000 (13,000 for elderly and 12,000 for less than 1 year).
I could not understand which sentence / word specifies the scope of denominator.
(I think I have difficult time to find out proportion to what.)
Thank you for your support.
Best,
Gocha
Think of proportion are ratio
We want: In which city was the least proportion of all deaths among the elderly attributed to pneumonia or influenza?
In other words we want the smallest value of (# of elderly who died of pneumonia/influenza)/(total # of elderly deaths)
