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 probability of rolling a sum of 5 with
[#permalink]
18 Mar 2022, 02:00
18 Mar 2022, 02:00
Expert Reply
00:00
Question Stats:
72% (00:59) correct
27% (01:10) wrong based on 18 sessions
Hide Show timer Statistics
Quantity A |
Quantity B |
The probability of rolling a sum of 5 with two six-sided dice |
The probability of dropping three coins and having all land heads |
A. Quantity A is greater
B. Quantity B is greater
C. The two quantities are equal
D. The relationship cannot be determined from the information given
Re: The probability of rolling a sum of 5 with
[#permalink]
18 Mar 2022, 21:02
18 Mar 2022, 21:02
1
Qt A
Two dices and we need a sum of \(5\)
\((1,4) (4,1) (2,3) (3,2)\) out of \(36\) pairs will give the sum of \(5\).
Probability \(= \frac{4}{36} = \frac{1}{9}\)
Qt B
Three coins and all heads.
Probability \(= \frac{1}{2} * \frac{1}{2} * \frac{1}{2} = \frac{1}{8}\)
Qt B > Qt A
Answer \(B\)
Two dices and we need a sum of \(5\)
\((1,4) (4,1) (2,3) (3,2)\) out of \(36\) pairs will give the sum of \(5\).
Probability \(= \frac{4}{36} = \frac{1}{9}\)
Qt B
Three coins and all heads.
Probability \(= \frac{1}{2} * \frac{1}{2} * \frac{1}{2} = \frac{1}{8}\)
Qt B > Qt A
Answer \(B\)
gmatclubot
Re: The probability of rolling a sum of 5 with [#permalink]
18 Mar 2022, 21:02
Moderators:
