Probability Basicshard
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An urn initially contains amber and obsidian stones. A process is defined: a stone is drawn at random and replaced by a stone of the opposite color. If two such operations are performed, what is the probability that the urn contains exactly amber and obsidian stones?
An urn initially contains amber and obsidian stones. A process is defined: a stone is drawn at random and replaced by a stone of the opposite color. If two such operations are performed, what is the probability that the urn contains exactly amber and obsidian stones?