document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=347038>Question 347038</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 5. 	The Centers for Disease Control have determined that when a person is given a vaccine, the probability that the person will develop immunity to a virus is 0.8.  If 7 people are given this vaccine, find the probability that\r<BR>\n" );
document.write( "\n" );
document.write( "a. 	at least five will develop immunity\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "b. 	exactly four will develop immunity\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "c. 	all will develop immunity\r<BR>\n" );
document.write( "\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #248147 by </B><A HREF=/tutors/aboutme.mpl?userid=edjones><B>edjones(8007)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=edjones><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=edjones><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=248147\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Expand the binomial (a+b)^7, Let a=.8 and b=.2<BR>\n" );
document.write( ".<BR>\n" );
document.write( "c. .8^7=.2097<BR>\n" );
document.write( ".<BR>\n" );
document.write( "b. 35*(.8)^4*(.2)^3=.1147<BR>\n" );
document.write( ".<BR>\n" );
document.write( "a. a^7+7a^6b+21a^5b^2=.852<BR>\n" );
document.write( ".<BR>\n" );
document.write( "Ed </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );