document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1155364>Question 1155364</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 20% of items produced from a factory are defective.find the probability that in a sample of 5cjosen at random 1; none is defective 2; one is defective 3: p(1<x<4)<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #777951 by </B><A HREF=/tutors/aboutme.mpl?userid=dkppathak><B>dkppathak(439)</B></A><img src=\"/images/stars/stars-10.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=dkppathak><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/cgi-bin/show-face.mpl?user=dkppathak><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=777951\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 20% of items produced from a factory are defective.find the probability that in a sample of chosen at random 1; none is defective 2; one is defective 3: p(1<x<4)<BR>\n" );
document.write( "solution <BR>\n" );
document.write( "P=0.2 q=0.8  n=5\r<BR>\n" );
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document.write( "1. none is defective means r=0<BR>\n" );
document.write( "5c0(.2)^0 (.8)^5=0.32768<BR>\n" );
document.write( "2. one is defective  r=1<BR>\n" );
document.write( "5c1(.2)^1(.8)4=5*0.2*.4096<BR>\n" );
document.write( "=0.4096<BR>\n" );
document.write( "3 r is between 1 and 4 means <BR>\n" );
document.write( "r=2,r=3<BR>\n" );
document.write( "5c2(.2)^2(0.8)^3 +5c3(.2)^3(0.8)^2<BR>\n" );
document.write( "10*.04*.512+10*.008*.64<BR>\n" );
document.write( "0.2048+.0512=0.256 </SPAN>\n" );
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