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help req for one DS question

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Intern
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Joined: 28 May 2006
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help req for one DS question [#permalink] New post 06 Jun 2006, 04:49
00:00
A
B
C
D
E

Difficulty:

(N/A)

Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
The question goes like this:
Susan flipped a fair coin N times.What fraction of the flips came up heads?

1)N =24
2)The number of flips that came up tails was 3/8N.

Iam sure i can get the answer with the second.But i have some doubt on the first choice...

pls suggest thanks!
SK
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Sashi K.

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Re: help req for one DS question [#permalink] New post 06 Jun 2006, 05:09
Sashi wrote:
The question goes like this:
Susan flipped a fair coin N times.What fraction of the flips came up heads?

1)N =24
2)The number of flips that came up tails was 3/8N.

Iam sure i can get the answer with the second.But i have some doubt on the first choice...

pls suggest thanks!
SK


B according to me. Cannot be A as it asks for exact fraction not the 'most likely' fraction.
Director
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 [#permalink] New post 06 Jun 2006, 05:11
With (2) you can get it so B

With (1) im tempted to say that we can because the stem says fair coin, but that doesn't mean heads and tails will be fair, just the probability is ...

Go with B
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I believe its yogurt!

  [#permalink] 06 Jun 2006, 05:11
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