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A woman will win $3.2 if in 5 tosses of a coin she gets

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A woman will win $3.2 if in 5 tosses of a coin she gets [#permalink] New post 09 Oct 2003, 21:34
A woman will win $3.2 if in 5 tosses of a coin she gets either of the sequences HTHTH or THTHT (H=head, T=tail). Determine her expectation.
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Re: Probability#11 [#permalink] New post 10 Oct 2003, 00:39
araspai wrote:
A woman will win $3.2 if in 5 tosses of a coin she gets either of the sequences HTHTH or THTHT (H=head, T=tail). Determine her expectation.


Out of scope of GMAT :)

Expectation = Mean
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 [#permalink] New post 13 Oct 2003, 23:48
Could it be (1/2^5+1/2^5)*320cents=20cents?
  [#permalink] 13 Oct 2003, 23:48
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A woman will win $3.2 if in 5 tosses of a coin she gets

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