m41 - producing descriptive statistics - 40 of 41.mht

sas的考试样题

            <TD><!-- InstanceBeginEditable name=3D"q3d" =
--><CODE>Weight</CODE><!-- InstanceEndEditable =
--></TD></TR></TBODY></TABLE>
        <P></P>
        <LI><!-- InstanceBeginEditable name=3D"q4text" -->Which of the =
following=20
        statements is true regarding BY group processing?<!-- =
InstanceEndEditable -->=20
        <P>
        <TABLE border=3D0>
          <TBODY>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Da name=3Dques4> </TD>
            <TD>&nbsp;<EM>a.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q4a" -->BY variables =
must be=20
              either indexed or sorted. <!-- InstanceEndEditable =
--></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Db name=3Dques4> </TD>
            <TD>&nbsp;<EM>b.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q4b" -->Summary =
statistics=20
              are computed for BY variables. <!-- InstanceEndEditable =
--></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Dc name=3Dques4> </TD>
            <TD>&nbsp;<EM>c.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q4c" -->BY group =
processing=20
              is preferred when you are categorizing data that contains =
few=20
              variables. <!-- InstanceEndEditable --></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Dd name=3Dques4> </TD>
            <TD>&nbsp;<EM>d.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q4d" -->BY group =
processing=20
              overwrites your data set with the newly grouped =
observations. <!-- InstanceEndEditable --></TD></TR></TBODY></TABLE>
        <P></P>
        <LI><!-- InstanceBeginEditable name=3D"q5text" -->Which group =
processing=20
        statement produced the PROC MEANS output shown below?=20
        <P>
        <TABLE title=3D"PROC MEANS Output" borderColor=3D#000000 =
cellSpacing=3D1=20
        cellPadding=3D2 rules=3Dgroups bgColor=3D#fffff0 border=3D1 =
frame=3Dbox>
          <THEAD>
          <TR>
            <TD vAlign=3Dbottom align=3Dleft bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Survive</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Sex</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa =
size=3D2><B><NOBR>N=20
              Obs</NOBR></B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dleft bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Variable</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
            size=3D2><B>N</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Mean</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa =
size=3D2><NOBR><B>Std=20
              Dev</B></NOBR></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Minimum</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright bgColor=3D#cccccc><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#0033aa=20
              size=3D2><B>Maximum</B></FONT></TD></TR></THEAD>
          <TBODY>
          <TR>
            <TD vAlign=3Dtop align=3Dleft bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>DIED</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>1</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>4</FONT></TD>
            <TD align=3Dleft bgColor=3D#efefef><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#000000=20
            size=3D2>Arterial<BR>Heart<BR>Cardiac<BR>Urinary</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>4<BR>4<BR>4<BR>4</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>92.5<BR>111.0<BR>176.8<BR>98.0</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>10.5<BR>53.4<BR>75.2<BR>186.1</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>83.0<BR>54.0<BR>95.0<BR>0.0</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>103.0<BR>183.0<BR>260.0<BR>377.0</FONT></TD></TR>
          <TR>
            <TD vAlign=3Dtop align=3Dleft bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2>&nbsp;</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>2</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>6</FONT></TD>
            <TD align=3Dleft bgColor=3D#efefef><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#000000=20
            size=3D2>Arterial<BR>Heart<BR>Cardiac<BR>Urinary</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>6<BR>6<BR>6<BR>6</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>94.2<BR>103.7<BR>318.3<BR>100.3</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>27.3<BR>16.7<BR>102.6<BR>155.7</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>72.0<BR>81.0<BR>156.0<BR>0.0</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>145.0<BR>130.0<BR>424.0<BR>405.0</FONT></TD></TR>
          <TR>
            <TD vAlign=3Dtop align=3Dleft bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>SURV</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>1</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>5</FONT></TD>
            <TD align=3Dleft bgColor=3D#efefef><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#000000=20
            size=3D2>Arterial<BR>Heart<BR>Cardiac<BR>Urinary</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>5<BR>5<BR>5<BR>5</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>77.2<BR>109.0<BR>298.0<BR>100.8</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>12.2<BR>32.0<BR>139.8<BR>60.2</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>61.0<BR>77.0<BR>66.0<BR>44.0</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>88.0<BR>149.0<BR>410.0<BR>200.0</FONT></TD></TR>
          <TR>
            <TD vAlign=3Dtop align=3Dleft bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
size=3D2>&nbsp;</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>2</FONT></TD>
            <TD vAlign=3Dtop align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000 =
size=3D2>5</FONT></TD>
            <TD align=3Dleft bgColor=3D#efefef><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#000000=20
            size=3D2>Arterial<BR>Heart<BR>Cardiac<BR>Urinary</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>5<BR>5<BR>5<BR>5</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>78.8<BR>100.0<BR>330.2<BR>111.2</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>6.8<BR>13.4<BR>87.0<BR>152.4</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              size=3D2>72.0<BR>84.0<BR>256.0<BR>12.0</FONT></TD>
            <TD align=3Dright bgColor=3D#efefef><FONT=20
              face=3D"Arial, Helvetica, Helv" color=3D#000000=20
              =
size=3D2>87.0<BR>111.0<BR>471.0<BR>377.0</FONT></TD></TR></TBODY></TABLE>=
<!-- InstanceEndEditable -->
        <P>
        <TABLE border=3D0>
          <TBODY>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Da name=3Dques5> </TD>
            <TD>&nbsp;<EM>a.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q5a" --><TT><FONT=20
              color=3D#003399>class sex survive;</FONT></TT><!-- =
InstanceEndEditable --></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Db name=3Dques5> </TD>
            <TD>&nbsp;<EM>b.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q5b" --><TT><FONT=20
              color=3D#003399>class survive sex;</FONT></TT><!-- =
InstanceEndEditable --></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Dc name=3Dques5> </TD>
            <TD>&nbsp;<EM>c.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q5c" --><TT><FONT=20
              color=3D#003399>by sex survive;</FONT></TT><!-- =
InstanceEndEditable --></TD></TR>
          <TR vAlign=3Dtop>
            <TD><INPUT type=3Dradio value=3Dd name=3Dques5> </TD>
            <TD>&nbsp;<EM>d.</EM>&nbsp;&nbsp;</TD>
            <TD><!-- InstanceBeginEditable name=3D"q5d" --><TT><FONT=20
              color=3D#003399>by survive sex;</FONT></TT><!-- =
InstanceEndEditable --></TD></TR></TBODY></TABLE>
        <P></P>
        <LI><!-- InstanceBeginEditable name=3D"q6text" -->Which program =
can be=20
        used to create the following output? <BR><BR>
        <TABLE title=3D"PROC Output" borderColor=3D#000000 =
cellSpacing=3D1=20
        cellPadding=3D2 rules=3Dgroups bgColor=3D#fffff0 border=3D1 =
frame=3Dbox>
          <THEAD>
          <TR bgColor=3D#cccccc>
            <TD vAlign=3Dbottom align=3Dleft><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>Sex</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>N Obs</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dleft><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>Variable</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>N</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>Mean</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>Std Dev</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =
Helvetica, Helv"=20
              color=3D#0033aa size=3D2><B>Minimum</B></FONT></TD>
            <TD vAlign=3Dbottom align=3Dright><FONT face=3D"Arial, =