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CEO
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Bouquet consists of red and white carnations, Randomly [#permalink]
15 Sep 2003, 22:15
Question Stats:
0% (00:00) correct
100% (00:12) wrong based on 0 sessions
Bouquet consists of red and white carnations, Randomly select
two flowers, what is probability of having one of each?
1. The number of red carnations is equal to that of the white carnations
2. There are 6 red carnations in the bouquet.
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Intern
Joined: 18 Aug 2003
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Location: USA
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the answer is A?
A) if the number of red = number of white then the probablility of picking one of each is 1/2 X 1/2 = 1/4
B) if the number of one type of carnations is given we cant find the probability because we dont know the total number or ratio of the types of carnations.
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Manager
Joined: 02 Jul 2003
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c. 1. if 4 of each 1/2*47=4/14. If 2 of each 1/2*2/3=1/3
2. Not enough info. Combined works 1/2*5/9=5/18
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Manager
Joined: 02 Jul 2003
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Sorry I meant 1/2*6/11=6/22-3/11
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Manager
Joined: 15 Sep 2003
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answer is C...1 is not sufficient b/c probability changes with the number of flowers in bouquet.....2 is simply not enough.....1& 2 together work b/c you have the exact number of flowers in the bouquet..
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