SOLUTION: In a sequence of independent rolls of a fair die, find the probability that
i) The first 3 is observed on the fifth trial
ii) At least 4 trials are required to obtain a 1
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-> SOLUTION: In a sequence of independent rolls of a fair die, find the probability that
i) The first 3 is observed on the fifth trial
ii) At least 4 trials are required to obtain a 1
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Question 1199988: In a sequence of independent rolls of a fair die, find the probability that
i) The first 3 is observed on the fifth trial
ii) At least 4 trials are required to obtain a 1
You can put this solution on YOUR website! .
In a sequence of independent rolls of a fair die, find the probability that
i) The first "3" is observed on the fifth trial
ii) At least 4 trials are required to obtain a "1"
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In this my post, I will solve part (i), ONLY.
Event in part (i) is the intersection of two independent events E and F.
Event E is that first 4 rolls are "not 3".
Event F is that the 5-th draw is "3".
Therefore, the probability of event in part (i) is
P(event in part (i) ) = = . ANSWER
