Consider an unfair dice. The probability that a 1 appears, when tossing the dice, is p; a 2 appears with probability q. Perform the tossing successfully.

(1) What is the probability that a 1 appears before the appearance of a 2.
(2) What is the probability that 1 appears twice before the appearance of a 2.

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Consider an unfair dice. The probability that a 1 appears, when tossing the dice, is p; a 2 appears with probability q. Perform the tossing successfully.

(1) What is the probability that a 1 appears before the appearance of a 2.
(2) What is the probability that 1 appears twice before the appearance of a 2.

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