document.write( "Question 1143881: Suppose two vaccum salesmen
\n" ); document.write( "A and B must each make two calls per day, one in the morning and one in the afternoon. A has a probability 0.4 of selling a cleaner on any call, while B(a novice) has a probability 0.1 of a sale. A works independently of B, and for each salesman, morning and afternoon results are independent of eachother. Find the probability that
\n" ); document.write( " A. A sells just one cleaner
\n" ); document.write( " B. B makes at least one sell \n" ); document.write( "

Algebra.Com's Answer #764813 by ikleyn(52915) $\"\"$ $\"About$

You can put this solution on YOUR website!
.
\n" ); document.write( "Suppose two vaccum salesmen A and B must each make two calls per day, one in the morning and one in the afternoon.
\n" ); document.write( "A has a probability 0.4 of selling a cleaner on any call, while B(a novice) has a probability 0.1 of a sale.
\n" ); document.write( "A works independently of B, and for each salesman, morning and afternoon results are independent of eachother.
\n" ); document.write( "Find the probability that\r
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "       A. A sells  exactly one cleaner during the day.\r\n" );
document.write( "       B. B makes at least one sell during the day\r\n" );
document.write( "

~~~~~~~~~~~~~~~~~\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( " Please pay attention on how I edited your post to make it clean and clear.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "

\r\n" );
document.write( "\r\n" );
document.write( "(A)  P = P(sells at least one during the day) - P(sells two during the day) = (0.4 + 0.4 - 0.4*0.4) - 0.4*0.4 = 0.64 - 0.16 = 0.48.\r\n" );
document.write( "\r\n" );
document.write( "\r\n" );
document.write( "(B)  P = complement to two unsuccessful calls = 1 - 0.9*0.9 = 0.19.\r\n" );
document.write( "

\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

\n" );