document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1011056>Question 1011056</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Joseph and Mikky are both studying for an exam. They feel that Joseph has a 55% chance of getting an A, and Mikky has a 35% chance. Suppose that there is a 15% chance that BOTH get an A. What is the chance that at least ONE of them will get an A? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #626605 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=626605\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> probability of A or B is equal to probability of A plus probability of B minus probability of A and B.\r<BR>\n" );
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document.write( "event A is Joseph gets an A.<BR>\n" );
document.write( "event B is Mikky gets an A.\r<BR>\n" );
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document.write( "p(A) = .55<BR>\n" );
document.write( "p(B) = .35<BR>\n" );
document.write( "p(A and B) = .15\r<BR>\n" );
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document.write( "p(A or B) = p(A) + p(B) - p(A and B).\r<BR>\n" );
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document.write( "that becomes p(A or B) = .55 + .35 - .15 = .75\r<BR>\n" );
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document.write( "there is a 75% chance that either Joseph or Mikky gets an A or both get an A.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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