Suppose we hv a fair coin and flip eight heads in a row.What is the probability of getting heads on the ninth?
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02-15-2013, 06:49 AM
Post: #1
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Suppose we hv a fair coin and flip eight heads in a row.What is the probability of getting heads on the ninth?
A classic problem related to this topic concerns coin flipping. Suppose we have a fair coin and flip eight heads in a row. What is the probability of getting heads on the ninth toss?
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02-15-2013, 06:57 AM
Post: #2
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50 -50
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02-15-2013, 06:57 AM
Post: #3
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same as getting heads on the other eight tries: 1/2
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02-15-2013, 06:57 AM
Post: #4
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50%, the results from the previous tosses dont impact it on the current throw, even if you got heads a trillion times in a row, the odds remain 50%
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02-15-2013, 06:57 AM
Post: #5
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1/2
Each throw is an independent event, so previous history has no effect. (To believe otherwise is the classic Gambler's Fallacy http://en.wikipedia.org/wiki/Gambler%27s_fallacy ). |
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