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05 Dec 2014, 07:43
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E
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
75%
(hard)
Question Stats:
36% (01:20) correct
64%
(01:23)
wrong
based on 318
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A student is to take her final exams in two subjects. The probability that she will pass the first subject is 3/4 and the probability that she will pass the second subject is 2/3. What is the probability that she will pass one exam or the other exam?
A) 5/12
B) 1/2
C) 7/12
D) 5/7
E) 11/12
Source: Chili Hot GMAT
A) 5/12
B) 1/2
C) 7/12
D) 5/7
E) 11/12
Source: Chili Hot GMAT
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05 Dec 2014, 18:40
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Do we really know that P(x) means only passing in x? If we visualize the venn diagram, P(x) means probability of passing in x along with yand without y!
My answer would be: 1/3+1/4-1/3*1/4=11/12
This is P(XUY).
Answer E.
My answer would be: 1/3+1/4-1/3*1/4=11/12
This is P(XUY).
Answer E.
05 Dec 2014, 18:43
Kudos
Bookmarks
Do we really know that P(x) means only passing in x? If we visualize the venn diagram, P(x) means probability of passing in x along with yand without y!
My answer would be: 1/3+1/4-1/3*1/4=11/12
This is P(XUY).
Answer E.
My answer would be: 1/3+1/4-1/3*1/4=11/12
This is P(XUY).
Answer E.
