document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=182131>Question 182131</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780030923517/algebrahomeworkh>Compound Events</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Could you explain everything that you do?<BR>\n" );
document.write( "Numbers 1-10 are written on cards and placed in a bag. Find each probability.<BR>\n" );
document.write( "7. choosing at lease one even number when selecting 2 cards from the bag\r<BR>\n" );
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document.write( "Five years after 650 high school senior graduated, 400 had a college degree and 310 were married. Half of the students with a college degree were married.<BR>\n" );
document.write( "8. What is the probability that a student has a college degree or is married?\r<BR>\n" );
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document.write( "Please answer me as soon as you could.<BR>\n" );
document.write( "Thank you for your help. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #136705 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=136705\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Numbers 1-10 are written on cards and placed in a bag. Find each probability.<BR>\n" );
document.write( "7. choosing at lease one even number when selecting 2 cards from the bag <BR>\n" );
document.write( "P(getting one even) = 1- P[getting 2 even or getting 0 even]<BR>\n" );
document.write( "= 1 - P(getting 2 even) - P(getting 2 odd)<BR>\n" );
document.write( "= 1 - 5C2/10C2 - 5C2/10C2<BR>\n" );
document.write( "= 1 - 10/45 - 10/45<BR>\n" );
document.write( "= 25/45 <BR>\n" );
document.write( "= 5/9<BR>\n" );
document.write( "============\r<BR>\n" );
document.write( "<BR>\n" );
document.write( "\n" );
document.write( "Five years after 650 high school senior graduated, 400 had a college degree and 310 were married. Half of the students with a college degree were married.<BR>\n" );
document.write( "8. What is the probability that a student has a college degree or is married? <BR>\n" );
document.write( "P(cd or married) = P(cd) + P(married) - P(cd and married)<BR>\n" );
document.write( "= 400/650 + 310/650 - 200/650<BR>\n" );
document.write( "= 510/650<BR>\n" );
document.write( "= 51/65<BR>\n" );
document.write( "===============<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );