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23-03-2018
Mathematics

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If the probability of success is .30, what is the probability of obtaining the first success within the first five trials

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mathmate mathmate

23-03-2018

The probability of NOT obtaining success within the first trial is (1-0.3)=0.7
The probability of NOT obtaining success within the first five trials is
=0.7^5=0.16807

The probability of obtaining ANY success within the first five trials
=1-(0.7^5)=0.83193

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