Chance that at least one number appears
Suppose n ordinary dice are rolled.
a) What is the chance that the dice show n different faces?
b) What is the chance that at least one number appears more than once?
Please provide at least a few details as to how your arrive at your answer.
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What is the chance that at least one number appears more than once? Please provide at least a few details as to how your arrive at your answer.
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