document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1028112>Question 1028112</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The random variable x represents the number of tests that a patient entering a hospital will have along with the<BR>\n" );
document.write( "corresponding probabilities. Find the mean and standard deviation.<BR>\n" );
document.write( "x      0     1    2   3   4<BR>\n" );
document.write( "P(x) 3/17 5/17 6/17 2/17 1/17 </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #643328 by </B><A HREF=/tutors/aboutme.mpl?userid=robertb><B>robertb(5830)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=robertb><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/cgi-bin/show-face.mpl?user=robertb><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=643328\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%29+=+0%2A%283%2F17%29+%2B+1%2A%285%2F17%29+%2B+2%2A%286%2F17%29+%2B+3%2A%282%2F17%29+%2B+4%2A%281%2F17%29+=+5%2F17+%2B+12%2F17+%2B+6%2F17+%2B+4%2F17++=27%2F17 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >, approximately 1.6.\r<BR>\n" );
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document.write( "<IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=E%28X%5E2%29+=+0%2A%283%2F17%29+%2B+1%2A%285%2F17%29+%2B+4%2A%286%2F17%29+%2B+9%2A%282%2F17%29+%2B+16%2A%281%2F17%29+=+5%2F17+%2B+24%2F17+%2B+18%2F17+%2B+16%2F17++=+63%2F17 ALIGN=MIDDLE   DISABLED_style= \"max-width:90%; height:auto;\" >, approximately 3.7.\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=Var%28X%29+=+E%28X%5E2%29+-+%28E%28X%29%29%5E2+=+63%2F17+-+%2827%2F17%29%5E2+=+342%2F289 ALIGN=MIDDLE  ALT=\"Var%28X%29+=+E%28X%5E2%29+-+%28E%28X%29%29%5E2+=+63%2F17+-+%2827%2F17%29%5E2+=+342%2F289\"   DISABLED_style= \"max-width:90%; height:auto;\" >\r<BR>\n" );
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document.write( "==> <IMG STYLE=\"max-width:80%;\" SRC=/cgi-bin/plot-formula.mpl?expression=SD+=+sqrt%28Var%28X%29%29+=+sqrt%28342%2F289%29+=+%283sqrt%2838%29%29%2F17 ALIGN=MIDDLE  ALT=\"SD+=+sqrt%28Var%28X%29%29+=+sqrt%28342%2F289%29+=+%283sqrt%2838%29%29%2F17\"   DISABLED_style= \"max-width:90%; height:auto;\" >, approximately 1.09. </SPAN>\n" );
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