document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=919262>Question 919262</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The probability that a family owns a washing machine is .68, that it owns a DVD player is .81, and that it owns both a washing machine and a DVD player is .58. What is the probability that a randomly selected family owns a washing machine or a DVD player? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #557606 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=557606\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Let\r<BR>\n" );
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document.write( "A = event that a family owns a washing machine<BR>\n" );
document.write( "B = event that a family owns a DVD player\r<BR>\n" );
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document.write( "So, by definition\r<BR>\n" );
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document.write( "P(A) = probability that a family owns a washing machine<BR>\n" );
document.write( "P(B) = probability that a family owns a DVD player<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) = 0.68 + 0.81 - 0.58\r<BR>\n" );
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document.write( "P(A or B) = <font color=\"red\">0.91</font>\r<BR>\n" );
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document.write( "The probability of owning a washing machine, or a DVD player, or both is <font color=\"red\">0.91</font>\r<BR>\n" );
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document.write( "Thanks,\r<BR>\n" );
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document.write( "Jim  </SPAN>\n" );
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