SOLUTION: The probability that a certain event A occurs in a given run of an experiment is 0.3. The outcome of each run of this experiment is independent of the outcomes of other runs. If th
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Question 1114403: The probability that a certain event A occurs in a given run of an experiment is 0.3. The outcome of each run of this experiment is independent of the outcomes of other runs. If the experiment is run repeatedly until A occurs, what is the probability exactly four runs will be required? please answer help. God bless you Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! The first three runs with probability 0.7 occur. Their probability is 0.343 from independence.
The fourth run has probability 0.3 of occurring, so the overall probability is 0.343 from the first three runs *0.3 for the fourth run. This is 0.1029.