lt 9 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. on average, how many people from the region will need to be selected to find one person who carries the genetic trait?

Respuesta :

54 people from the region will need to be selected to find one person who carries the genetic trait

47 percent of the people living in a certain region carry a certain genetic trait.

since 47% carry genetic trait

therefore 53% didn't carry genetic trait

because every time we get person not carry genetic trait but after 54 person surety carry genetic trait

people from the region will be selected at random one at a time until someone is found who carries the genetic trait.

0.47 would be your probability of randomly selecting but your'e solving geometrically so think how many trials until successful.

use u x(mean)= 1/.47 to get around 2.13

54 people from the region will need to be selected to find one person who carries the genetic trait

learn more about of percentage here

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