document.write( "Question 219915: 30% population of a village has a certain disease.If people in the village are selected successively at random, what is the probability that the 3th person selected is the first person with the disease? \n" ); document.write( "
Algebra.Com's Answer #165279 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! 30% population of a village has a certain disease.If people in the village are selected successively at random, what is the probability that the 3th person selected is the first person with the disease? \n" ); document.write( "------------------- \n" ); document.write( "P(3rd first diseased) = (0.7)^2(0.3) = 0.147 \n" ); document.write( "================================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |