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According to a recent survey, 47 percent of the people living in a certain region carry...

According to a recent survey, 47 percent of the people living in a certain region carry a certain genetic trait. People from the region will be selected at random one at a time until someone is found who carries the genetic trait. Let the random variable G represent the number of people selected to find one person who carries the genetic trait. On average, how many people from the region will need to be selected to find one person who carries the genetic trait?

math   Statistics-And-Probability   
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Answer #1

p = 47% = 0.47 This is a geometric distribution problems. mean = 1 = - = 2.128 2 so on average 2 people from the region will

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