document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=272413>Question 272413</A>: <I><SPAN STYLE=\"word-break: break-all;\"> this is the question im tying to figure out - Historically, 5 percent of a mail-order firm’s repeat charge-account customers have an incorrect<BR>\n" );
document.write( "current address in the firm’s computer database. (a) What is the probability that none of the next 12<BR>\n" );
document.write( "repeat customers who call will have an incorrect address? (b) One customer? (c) Two customers?<BR>\n" );
document.write( "(d) Fewer than three? (e) Construct the probability distribution (using Excel or Appendix A), make<BR>\n" );
document.write( "a graph of its PDF, and describe its shape. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #199301 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=199301\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Historically, 5 percent of a mail-order firm’s repeat charge-account customers have an incorrect current address in the firm’s computer database. <BR>\n" );
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document.write( "Binomial Problem with n = 12 ; p = 0.05<BR>\n" );
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document.write( "(a) What is the probability that none of the next 12<BR>\n" );
document.write( "repeat customers who call will have an incorrect address? <BR>\n" );
document.write( "P(x= 0) = 12C0(0.05)^0(0.95)^12 = 0.54..<BR>\n" );
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document.write( "(b) One customer? <BR>\n" );
document.write( "P(x= 1) = 12C1(0.05)^1(0.95)^11 = 0.34..<BR>\n" );
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document.write( "(c) Two customers?<BR>\n" );
document.write( "P(x= 2) = 0.099<BR>\n" );
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document.write( "(d) Fewer than three?<BR>\n" );
document.write( "P(0<= x <= 2) = Binomcdf(12,0.05,2) = 0.98.. \r<BR>\n" );
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document.write( "(e) Construct the probability distribution (using Excel or Appendix A), make<BR>\n" );
document.write( "a graph of its PDF, and describe its shape.<BR>\n" );
document.write( "Can't show you that on this site.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );