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Mathematics Help to calculate the probabilities!, challenging question
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Eventless
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 Jul 15 2009, 11:57 AM
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QUOTE(Thinkingfox @ Jul 15 2009, 12:16 AM) I think at least one additional information is required. You say there are favourites, so what is the additional probability for a favourite pig to win compared to an ordinary pig? I think the confusion here comes from the word favorite. In this situation it could mean that the favored pigs are more likely to win than the regulars. This is why Thinkingfox is asking for more information regarding the probabilities of the favored pigs winning. darkwall's definition of favorite could be that there is something else beside the winning probability that is making the pigs the favorites. Maybe the pigs have nice names or they all belong to a particular person. This make definition means that the favored pigs does not have a different winning probability compared to the normal pigs. |
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Eventless
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Jul 18 2009, 09:49 AM
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QUOTE(wKkaY @ Jul 18 2009, 12:57 AM) Darkwall, hope you don't mind if I tumpang your thread. A friend asked me earlier. Let's say you have these parents. The parents have two children. One of them is a girl. What is the probability that the other child is a boy? Assume there's 1 girl to every 1 boy in the world (it's close). When calculating the the probability of the other child's gender, do we consider the population as a whole (6 billion, so the probability that it will be a boy is a tiny bit higher than 1/2), or do we consider this family in itself (so, 2/3 that it will be a boy because they already have a girl). There's only one probability involved here since the gender of a child is not affected by existing siblings. The probability of 50% for either gender over six billion people means that it is possible for a family to have 3 boys and another family to have 3 girls. It all even outs when large numbers are involved. |
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