document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=481082>Question 481082</A>: <I><SPAN STYLE=\"word-break: break-all;\"> In a recent study 90 percent of the homes in the United States were found to have color TVs.  In a sample of nine homes, what is the probability that:<BR>\n" );
document.write( "a.  All nine have color TVs?<BR>\n" );
document.write( "b.  Less than five have color TVs?<BR>\n" );
document.write( "c.  More than five have color TVs?<BR>\n" );
document.write( "d.  At least seven homes have color TVs?\r<BR>\n" );
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document.write( "I am confused I was told this problem is Binomial but I can't seem to solve it can someone please help me out please.   Thank you very much. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #329426 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><IMG SRC=http://www.algebra.com/images/aboutme-small.gif BORDER=0 alt=\"About Me\" VALIGN=MIDDLE></A>&nbsp;<IMG SRC=http://www.algebra.com/images/nopicture.jpg><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=329426\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> In a recent study 90 percent of the homes in the United States were found to have color TVs. In a sample of nine homes, what is the probability that:<BR>\n" );
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document.write( "Binomial Problem with n = 9 and p = 0.9<BR>\n" );
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document.write( "a. All nine have color TVs?<BR>\n" );
document.write( "P(x=9) = 9C9(0.9)^9*(0.1)^0 = 0.9^9 = 0.3874<BR>\n" );
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document.write( "b. Less than five have color TVs?<BR>\n" );
document.write( "P(0<= x <=4) = binomcdf(9,0.9,4) = 0.0008909<BR>\n" );
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document.write( "c. More than five have color TVs?<BR>\n" );
document.write( "P(6<= x <=9) = 1 - binomcdf(9,0.9,5) = 0.9917<BR>\n" );
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document.write( "d. At least seven homes have color TVs?<BR>\n" );
document.write( "P(7<= x <=9) = 1-binomcdf(9,0.9,6) = 0.9470<BR>\n" );
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document.write( "I used a TI-84 to get the cumulative probabilities.<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. <BR>\n" );
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