Throw a dice and record the result. After flipping a fair coin. If it comes letters repeat. If it comes up heads stop. (In other words, throw the dice continuously until we crown the currency immediately after throwing the dice.) What is the probability that the maximum effect of the dice will be seen exactly 2? i think that i must use bernouli type like that : (n c k)p^k(1-p)^n-k but its not correct i hink that i am not use the right way to solve this problem maybe can i have any ideas?