document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=761278>Question 761278</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A survey finds customers overpay for 4 out of every 10 items. Suppose a customer purchases 15 items.\r<BR>\n" );
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document.write( "a) the probability the customer overpays on none of the items is______? (round decimal to the nearest thousandth).<BR>\n" );
document.write( "b) The probability the customer overpays on at least 3 items is______? (round decimal to the nearest thousandth).\r<BR>\n" );
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document.write( "-I got .104 for the first answer is that correct? I can't figure out the second one! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #463159 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=463159\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A survey finds customers overpay for 4 out of every 10 items. Suppose a Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "customer purchases 15 items.<BR>\n" );
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document.write( "Binomial Problem with n = 15 and p(overpay) = 0.4<BR>\n" );
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document.write( "a) the probability the customer overpays on none of the items is 0.6^15 =<BR>\n" );
document.write( "0.000470.. (round decimal to the nearest thousandth).<BR>\n" );
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document.write( "b) The probability the customer overpays on at least 3 items is<BR>\n" );
document.write( "P(3<= x <=15) = 1 - binomcdf(15,0.4,2) = 0.9729<BR>\n" );
document.write( " (round decimal to the nearest thousandth).<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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