document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1159483>Question 1159483</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A production process is known to produce 10% defectives. A buyer purchases 30 of these items.<BR>\n" );
document.write( "What is the probability that 5 or less items are defective? \r<BR>\n" );
document.write( "\n" );
document.write( " \r<BR>\n" );
document.write( "\n" );
document.write( "(b) What is the probability that exactly 2 items are defective? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #782555 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=782555\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> it is a binomial looking at the probability 0 to 5 are defective given that the probability of each is 0.1.<BR>\n" );
document.write( "That is 0.9268. 2nd VARS, binomcdf (30,.1,5)\r<BR>\n" );
document.write( "\n" );
document.write( "exactly 2 items are defective is 0.2277 <BR>\n" );
document.write( "2nd VARS, binompdf (30, .1, 2)\r<BR>\n" );
document.write( "\n" );
document.write( "also for this one 30C2*0.9^28*0.1^2\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );