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)\"\" \"About 
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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.
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