document.write( "Question 1182867: A hotel claims that 85% of its customers are very satisfied with its service. Complete parts a through d below based on a random sample of 7 customers.\r
\n" );
document.write( "\n" );
document.write( "What is the probability that less than 5 customers are very satisfied? \n" );
document.write( "
Algebra.Com's Answer #828405 by Boreal(15235) You can put this solution on YOUR website! Fewer than 5 customers. \n" ); document.write( "Do probabilities of 5,6,7 and subtract those 3 probabilities from 1. \n" ); document.write( "for 5: 7C5*0.85^5*0.15^2=0.2097 \n" ); document.write( "for 6: 7*0.85^6*0.15=0.3960 \n" ); document.write( "for 7: 0.85^7=0.3206 \n" ); document.write( "they add to 0.9263 \n" ); document.write( "so the answer is the complement or 0.0737 \n" ); document.write( " |