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 distribution of blood types within a certain population
[#permalink]
04 Mar 2017, 03:41
04 Mar 2017, 03:41
Expert Reply
00:00
Question Stats:
91% (00:40) correct
8% (00:42) wrong based on 118 sessions
Hide Show timer Statistics
The distribution of blood types within a certain population is shown in the table. What is the probability that a person chosen at random from the population will be a person who has blood type AB ?
A) 0.04
B) 0.044
C) 0.4
D) 0.51
E) 0.56
Show: ::
Attachment:
#GREpracticequestion The distribution of blood types within a certain population.jpg [ 21.83 KiB | Viewed 13453 times ]
Re: The distribution of blood types within a certain population
[#permalink]
07 Mar 2017, 16:11
07 Mar 2017, 16:11
1
Expert Reply
Explanation
Since the population is 100% of the people, the sum of the four blood types must equal 100%:
O + A + B + AB = 100%
45% + 40% + 11% + x% = 100%
x% = 4% = 0.04
Hence option A is correct.
Since the population is 100% of the people, the sum of the four blood types must equal 100%:
O + A + B + AB = 100%
45% + 40% + 11% + x% = 100%
x% = 4% = 0.04
Hence option A is correct.
Re: The distribution of blood types within a certain population
[#permalink]
14 Dec 2021, 00:54
14 Dec 2021, 00:54
Expert Reply
