document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1112108>Question 1112108</A>: <I><SPAN STYLE=\"word-break: break-all;\"> 	Find the indicated probability by using the special addition rule.\r<BR>\n" );
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document.write( "A relative frequency distribution is given below for the size of families in one U.S. city<BR>\n" );
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document.write( "Size Relative frequency<BR>\n" );
document.write( "2 0.406<BR>\n" );
document.write( "3 0.245<BR>\n" );
document.write( "4 0.204<BR>\n" );
document.write( "5 0.100<BR>\n" );
document.write( "6 0.028<BR>\n" );
document.write( "7+ 0.017\r<BR>\n" );
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document.write( "A family is selected at random. Find the probability that the size of the family is less than 5. Round approximations to three decimal places.<BR>\n" );
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document.write( "???\"special addition rule\"???<BR>\n" );
document.write( "Just add the probabilities....<br><BR>\n" );
document.write( "\"less than 5\" means 2, 3, or 4:<BR>\n" );
document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=%280.406%29%2B%280.245%29%2B%280.204%29+=+0.855 ALIGN=MIDDLE  ALT=\"%280.406%29%2B%280.245%29%2B%280.204%29+=+0.855\"   DISABLED_style= \"max-width:90%; height:auto;\" > </SPAN>\n" );
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