document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=320928>Question 320928</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The mathmatics department of a college has 14 male professors, 14 female proffesors, 7 male teaching assistants, and 14 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching assistant or a female. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #229842 by </B><A HREF=/tutors/aboutme.mpl?userid=nyc_function><B>nyc_function(2741)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=nyc_function><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=nyc_function><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=229842\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need the formula: P(A or B) = P(A) + P(B) - P(A and B), <BR>\n" );
document.write( "where is P = probability.\r<BR>\n" );
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document.write( "Let A = selecting a teaching assistance \r<BR>\n" );
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document.write( "Let B = selecting a female\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( "P(A or B) = (28/49) + (28/49) - (28/49*28/49)\r<BR>\n" );
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document.write( "P(A or B) = (4/7) + (4/7) - (4/7*4/7)\r<BR>\n" );
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document.write( "P(A or B) = (8/7) - (16/49)\r<BR>\n" );
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document.write( "P(A or B) = 40/49\r<BR>\n" );
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document.write( " </SPAN>\n" );
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