document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=577857>Question 577857</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Given P(A)=0.2; P(B) = 0.5, P(A|B) = 0.3:\r<BR>\n" );
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document.write( "(a) Compute P(A and B).<BR>\n" );
document.write( "(b) Compute P(A or B).\r<BR>\n" );
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document.write( " P(A) = 0.2; P(B) = 0.5; PA\B) = 0.3;\r<BR>\n" );
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document.write( "Compute P(A and B)<BR>\n" );
document.write( "Note = P(A) = 1 P(A)<BR>\n" );
document.write( "        0.2 =1 P(A)<BR>\n" );
document.write( "       .2 = 1.0 P(A)\r<BR>\n" );
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document.write( "Please help me with this problem. So I can understand what I am doing.\r<BR>\n" );
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document.write( "Thanks<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 #370350 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=370350\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> I'll do the first one to get you started.\r<BR>\n" );
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document.write( "a)\r<BR>\n" );
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document.write( "P(A|B) = P(A and B)/P(B)\r<BR>\n" );
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document.write( "0.3 = P(A and B)/0.5\r<BR>\n" );
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document.write( "0.15 = P(A and B)\r<BR>\n" );
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document.write( "P(A and B) = 0.15\r<BR>\n" );
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document.write( "b)\r<BR>\n" );
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document.write( "I'll let you try this one. Use the formula\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( "to find the answer.\r<BR>\n" );
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