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The probability of rolling a sum of 5 with
[#permalink]
18 Mar 2022, 02:00
18 Mar 2022, 02:00
Expert Reply
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Question Stats:
68% (00:59) correct
31% (01:14) wrong based on 19 sessions
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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
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