document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919545>Question 919545</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The probability that a certain make of car will need repairs in the first six months is 0.39 . A dealer sells 7 such cars. What is the probability that at least one of them will require repairs in the first six months? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557784 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=557784\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The probability that a certain make of car will need repairs in the first six months is 0.39 . A dealer sells 7 such cars. What is the probability that at least one of them will require repairs in the first six months?<BR>\n" );
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document.write( "Binomial Problem with n = 7 ; p(need repair) = 0.39 ; p(not need) = 0.61<BR>\n" );
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document.write( "P(at least 1 need) = 1 - P(none need repair) = 1 - 0.61^7 = 0.9686<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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