document.write( "Question 1125679: A door-to-door salesman expects to make a sale 25% of the time when starting the day. But making a sale increases his enthusiasm so much that the probability of a sale to the next customer is 0.46. If he makes no sale, the probability for a sale to the next customer stays at 0.25. What is the probability that he will make at least two sales with his first three visits? \n" ); document.write( "
Algebra.Com's Answer #742000 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! 3 possibilities: \n" ); document.write( "first two are sales, with probability 0.25*0.46, and third is not with probability of 0.54=0.0621\r \n" ); document.write( "\n" ); document.write( "first and third are sales or 0.25*0.54*0.25, 0.03375 \n" ); document.write( "second and third are sales with 0.75*0.25*0.46, 0.08625\r \n" ); document.write( "\n" ); document.write( "The sum is 0.1821 \n" ); document.write( " |