Math Is Fun Forum
  Discussion about math, puzzles, games and fun.   Useful symbols: √ ∞ ≠ ≤ ≥ ≈ ⇒ ∈ Δ θ ∴ ∑ ∫ π -

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#1 2009-07-17 02:15:41

soroban
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Find the flaw

]

.

 

#2 2009-07-17 03:21:20

JaneFairfax
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Re: Find the flaw

soroban wrote:






Last edited by JaneFairfax (2009-07-17 04:28:10)


Q: Who wrote the novels Mrs Dalloway and To the Lighthouse?

A: Click here for answer.
 

#3 2009-07-17 03:45:37

mathsyperson
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Re: Find the flaw

JaneFairfax wrote:

True, but that's not the main problem.
After your fix, we still have that P(B) = 2/3, so the "conclusion" still holds.


Why did the vector cross the road?
It wanted to be normal.
 

#4 2009-07-17 04:36:46

JaneFairfax
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Re: Find the flaw

I dont see what the problem is, really (if not the minor one I pointed out). If you have two Black balls and one White ball in the bag, the probability of picking a Black ball is ⅔. If you have one Black ball and two other balls that can be either colour, the probability of picking a Black ball is also ⅔. There is nothing wrong with the probabilities of two different scenarios happening to be the same.

Last edited by JaneFairfax (2009-07-18 00:34:53)


Q: Who wrote the novels Mrs Dalloway and To the Lighthouse?

A: Click here for answer.
 

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