document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=180363>Question 180363</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Ron has a 53% chance of receiving an A grade in geology, a 43% chance of receiving an A grade in mathematics, and a 76% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics. \r<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #135231 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=135231\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Ron has a 53% chance of receiving an A grade in geology, a 43% chance of receiving an A grade in mathematics, and a 76% chance of receiving an A grade in geology or mathematics (or both). Find the probability that he receives A grades in both geology and mathematics<BR>\n" );
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document.write( "P(geo and math) = P(geo) + P(math) - P(geo or math)<BR>\n" );
document.write( "= 0.53 + 0.43 - 0.76 \r<BR>\n" );
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document.write( "= 0.96 = 0.76\r<BR>\n" );
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document.write( "= 0.20<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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