document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=615359>Question 615359</A>: <I><SPAN STYLE=\"word-break: break-all;\"> I have lost here with 2 different formula it's likely the same for me ,f(x) = n nCr x p^x(1 - p)^n-x or the Discrete population Probability D??which one is corrector and why? <BR>\n" );
document.write( "Because not all airline passengers show up for their reserved seat, an airline sells 125 tickets for a flight that holds only 120 passengers. The probability that a passenger does not show up is 0.10, and the passengers behave independently.\r<BR>\n" );
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document.write( "a)What is the probability that every passenger who shows up can take the flight?<BR>\n" );
document.write( "b)What is the probability that the flight departs with empty seats?<BR>\n" );
document.write( "c)What is the probability that the flight departs with exactly 5 empty seats?\r<BR>\n" );
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document.write( "Thanks so much in advance! </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #387184 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=387184\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I have lost here with 2 different formula it's likely the same for me ,f(x) = n nCr x p^x(1 - p)^n-x or the Discrete population Probability D??which one is corrector and why? <BR>\n" );
document.write( "Because not all airline passengers show up for their reserved seat, an airline sells 125 tickets for a flight that holds only 120 passengers. The probability that a passenger does not show up is 0.10, and the passengers behave independently. <BR>\n" );
document.write( "a)What is the probability that every passenger who shows up can take the flight?<BR>\n" );
document.write( "P(x <= 120) = binomcdf(125,0.90,120) = 0.9961<BR>\n" );
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document.write( "b)What is the probability that the flight departs with empty seats?<BR>\n" );
document.write( "P(x > = 5) = 1 - binomcdf(125,0.1,5) = 0.9886<BR>\n" );
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document.write( "c)What is the probability that the flight departs with exactly 5 empty seats?<BR>\n" );
document.write( "P(x = 115)= 125C115*(0.9)^115*(0.1)^5 =  0.0970<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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document.write( " </SPAN>\n" );
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