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Introduction: Dice question

More Details: suppose you roll a fair six-sided die repeatedly until the first time you roll a number that you have rolled before.

(a) For each r=1,2.... calculate the probability pr that you roll exactly r times.

(b) Without calculation, write down the value of p1+p2+...+p10

More Details: suppose you roll a fair six-sided die repeatedly until the first time you roll a number that you have rolled before.

(a) For each r=1,2.... calculate the probability pr that you roll exactly r times.

(b) Without calculation, write down the value of p1+p2+...+p10

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