document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1181816>Question 1181816</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Help with comprehending this kind of graph :(\r<BR>\n" );
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document.write( "In a survey, 250 shoppers were asked whether they have access to a computer at home and if they have a personal e-mail account. Their responses are summarized in the following table.\r<BR>\n" );
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document.write( "Table: https://imgur.com/a/iuDC7wc </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #811729 by </B><A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><B>math_tutor2020(3817)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=math_tutor2020><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=811729\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <font color=black size=3><BR>\n" );
document.write( "Part A\r<BR>\n" );
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document.write( "Here's the original table<BR>\n" );
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document.write( "<tr><TD ></TD><TD >E-mail</TD><TD >No e-mail</TD></tr><tr><TD >Computer</TD><TD >73</TD><TD >17</TD></tr><tr><TD >No computer</TD><TD >22</TD><TD >138</TD></tr>\n" );
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document.write( "Let's compute the row and column totals (eg: 73+17 = 90 in the first row)<BR>\n" );
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document.write( "<tr><TD ></TD><TD >E-mail</TD><TD >No e-mail</TD><TD >Total</TD></tr><tr><TD >Computer</TD><TD >73</TD><TD >17</TD><TD >90</TD></tr><tr><TD >No computer</TD><TD >22</TD><TD >138</TD><TD >160</TD></tr><tr><TD >Total</TD><TD >95</TD><TD >155</TD><TD >250</TD></tr>\n" );
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document.write( "The question in part A is asking the percentage of shoppers who do <u>not</u> have computer access. We see that 22+138 = 160 people do not have a computer at home. <BR>\n" );
document.write( "This is out of 250 people surveyed.\r<BR>\n" );
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document.write( "Therefore, 160/250 = 0.64 = <font color=red>64%</font> of the shoppers do not have a computer at home.\r<BR>\n" );
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document.write( "Answer: <font color=red>64%</font>\r<BR>\n" );
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document.write( "Part B\r<BR>\n" );
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document.write( "Use the table we made in part A. Specifically, the second table is the most useful here.\r<BR>\n" );
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document.write( "There are 95 people who have email (since 73+22 = 95) out of 250 shoppers total\r<BR>\n" );
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document.write( "95/250 = 0.38 = <font color=red>38%</font> of the shoppers have email. \r<BR>\n" );
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document.write( "Answer: <font color=red>38%</font><BR>\n" );
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