document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=861169>Question 861169</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Hi,<BR>\n" );
document.write( "I will appreciate any help you can give me with this equation and please show me how you received the answer. Maybe I will understand someone else, because I don't understand the book. Thanks in advance\r<BR>\n" );
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document.write( "Use the given value to find the following. (Enter your answers as fractions.) <BR>\n" );
document.write( "P(A) = 0.3,  P(B) = 0.4,  P(A &#8746; B) = 0.6<BR>\n" );
document.write( "(a)   P(A given B)<BR>\n" );
document.write( "(b)   P(B given A)<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #519086 by </B><A HREF=/tutors/aboutme.mpl?userid=Fombitz><B>Fombitz(32388)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Fombitz><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=Fombitz><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=519086\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> You need to find P(A intersection B).<BR>\n" );
document.write( " P(A U B)=P(A)+P(B)-P(A int B)<BR>\n" );
document.write( "0.6=0.3+0.4-P(A int B)<BR>\n" );
document.write( "0.6=0.7-P(A int B)<BR>\n" );
document.write( "P(A int B)=0.1<BR>\n" );
document.write( "So now looking at the conditional probabilities,<BR>\n" );
document.write( "P(A|B)=P (A int B)/P(B)=0.1/0.4=1/4<BR>\n" );
document.write( "P(B|A)=P(A int B)/P(A)=0.1/0.3=1/3 </SPAN>\n" );
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