document.write( "Question 876213: A marketing manager makes the statement that the long-run probability that a
\n" ); document.write( "customer would prefer the deluxe model to the standard model is 30%.
\n" ); document.write( "1.2.1 What is the probability that exactly 3 in a random sample of 10 customers will
\n" ); document.write( "prefer the deluxe model? (3)
\n" ); document.write( "1.2.2 What is the probability that more than 2 in a random sample of 10 customers
\n" ); document.write( "will refer the standard model? \n" ); document.write( "

Algebra.Com's Answer #528646 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi
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document.write( "p(prefer deluxe) = .30,  n = 10
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document.write( "P(x = 3) = 10C3)(.30)^3(.70)^7  0r  normalpdf(10, .3, 3) = .2668
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document.write( "P( > 2)= 1 - normalcdf(10, .3,1) = .6172
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document.write( "Recommend stattrek.com to check Your TI result (until You trust it:) \n" );
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