document.write( "Question 970850: a salesman has 60% chance of making sale to a customer . i a given hour there 3 customers arrive . what is the probability that he makes a sale.? \n" ); document.write( "
Algebra.Com's Answer #593526 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! What's the probability he WON'T make a sale?\r \n" ); document.write( "\n" ); document.write( "That's easier, because he could make 1,2,or 3 sales, and each has its own probability.\r \n" ); document.write( "\n" ); document.write( "Probability he will NOT sell is \n" ); document.write( "0.4*0.4*0.4=0.064\r \n" ); document.write( "\n" ); document.write( "Probability he will sell to at least one is 0.936 (1-0.064).\r \n" ); document.write( "\n" ); document.write( "In statistics problems with multiple choices, sometimes it is easier to figure out what you DON'T want and subtract it from 1. \n" ); document.write( " |