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x > 0 and the probability that event A will occur is x, and
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30 Jul 2020, 11:17
30 Jul 2020, 11:17
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72% (01:19) correct
27% (01:30) wrong based on 197 sessions
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\(x>0\)
The probability that event \(A\) will occur is \(x\), and the probability that event A will not occur is \(y\), where \(y > 3x\).
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
The probability that event \(A\) will occur is \(x\), and the probability that event A will not occur is \(y\), where \(y > 3x\).
Quantity A |
Quantity B |
\(x\) |
\(\frac{1}{5}\) |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Re: x > 0 and the probability that event A will occur is x, and
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30 Jul 2020, 11:20
30 Jul 2020, 11:20
Expert Reply
Post A Detailed Correct Solution For The Above Questions And Get A Kudos.
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
Question From Our New Project: GRE Quant Challenge Questions Daily - NEW EDITION!
Re: x > 0 and the probability that event A will occur is x, and
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30 Jul 2020, 12:46
30 Jul 2020, 12:46
2
Carcass wrote:
\(x>0\)
The probability that event \(A\) will occur is \(x\), and the probability that event A will not occur is \(y\), where \(y > 3x\).
The probability that event \(A\) will occur is \(x\), and the probability that event A will not occur is \(y\), where \(y > 3x\).
Quantity A |
Quantity B |
\(x\) |
\(\frac{1}{5}\) |
Intuitively, if y=3x and x+y =1 (100%) then x= 1/4. Therefore, if y is greater than 3x, x must be less than 1/4. We know that 1/4 (.25) is greater than 1/5 (.2). However, we do not know how much less than 1/4 x actually is -- it could be .24 (greater than 1/5) or .19 (less than 1/5). Therefore, the relationship between Quantities A and B cannot be determined and the correct answer is D.
