document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=860998>Question 860998</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Please help me.\r<BR>\n" );
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document.write( "If P(A)=0.65, P(B)=0.45 and  P(A and B)= 0.15, find the following probabilities. Drawing a Venn Diagram may help you. <BR>\n" );
document.write( "a)   P(A or B) =  <BR>\n" );
document.write( "b)   P(not A)  =  <BR>\n" );
document.write( "c)   P(not B) =  <BR>\n" );
document.write( "d)   P(A and (not B))  =  <BR>\n" );
document.write( "e)   P(not(A and B)) =\r<BR>\n" );
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document.write( "For (a), I keep coming up with 1.1 by adding .65+.45, but this is not the correct answer.  I also tried multiplying A with B to get .2925, but this is also incorrect.  I'm also confused how to calculate the other parts.  If you can help, I'd greatly appreciate it.\r<BR>\n" );
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document.write( "Thanks. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #518824 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=518824\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If P(A)=0.65, P(B)=0.45 and P(A and B)= 0.15, find the following probabilities. Drawing a Venn Diagram may help you.<BR>\n" );
document.write( "Formula: P(A or B) = P(A)+P(B)-P(A and B)<BR>\n" );
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document.write( "a) P(A or B) = 0.65+0.45-0.15 = 0.95<BR>\n" );
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document.write( "b) P(not A) =  1 - 0.65 = 0.35<BR>\n" );
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document.write( "c) P(not B) =  1 - 0.45 = 0.55<BR>\n" );
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document.write( "d) P(A and (not B)) <BR>\n" );
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document.write( "e) P(not(A and B)) = 1 - 0.95 = 0.05<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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