document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=935182>Question 935182</A>: <I><SPAN STYLE=\"word-break: break-all;\"> the probability of getting a credit in an examination is 1/3. If three students are selected at random,what is the probability that at least one of them got a credit? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #568342 by </B><A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><B>jim_thompson5910(35256)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=jim_thompson5910><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=568342\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> P(credit) = 1/3<BR>\n" );
document.write( "P(no credit) = 2/3\r<BR>\n" );
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document.write( "P(all 3 not getting credit) = (2/3)^3 = 8/27\r<BR>\n" );
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document.write( "P(at least one getting credit) = 1 - P(all 3 not getting credit)\r<BR>\n" );
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document.write( "P(at least one getting credit) = 1 - 8/27\r<BR>\n" );
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document.write( "P(at least one getting credit) = 27/27 - 8/27\r<BR>\n" );
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document.write( "P(at least one getting credit) = <font color=\"red\">19/27</font>\r<BR>\n" );
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