document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=557258>Question 557258</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 70% of Valorites can answer the previous question correctly, suppose you select 3 Valorites at random, what is the probability that at least one of the 3 can answer correctly? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #362510 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=362510\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 70% of Valorites can answer the previous question correctly, suppose you select 3 Valorites at random, what is the probability that at least one of the 3 can answer correctly?<BR>\n" );
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document.write( "Binomial Problem with n = 3 and p(correct) = 0.7<BR>\n" );
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document.write( "P(1 <= x <= 3) <BR>\n" );
document.write( "= 1 - P(x=0) <BR>\n" );
document.write( "= 1- 3C0(0.7)^0(0.3)^(3) <BR>\n" );
document.write( "= 1 - 0.3^3 <BR>\n" );
document.write( "= 0.973<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
document.write( "================================= </SPAN>\n" );
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