document.write( "Question 1177290: Records indicate that I will make a sale on 70% of my sales calls. If I call 4 potential clients, what is the probability that I make exactly three sales? What is the probability that I will make exactly four sales? \n" ); document.write( "

Algebra.Com's Answer #806049 by ewatrrr(24785) $\"\"$ $\"About$

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document.write( "Hi\r\n" );
document.write( "Binomial distribution: p(sale) = .70   and q(no sale) = .30\r\n" );
document.write( "n = 4\r\n" );
document.write( "Using calculator:\r\n" );
document.write( "P(x = 3) = binompdf(n, p, x-value) =  binompdf(4, .7, 3) = .4116\r\n" );
document.write( "P(x = 4) = binompdf(4, .7, 4) = .2401\r\n" );
document.write( "0r\r\n" );
document.write( "By Hand:   \r\n" );
document.write( "Wish You the Best in your Studies.\r\n" );
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