document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=890339>Question 890339</A>: <I><SPAN STYLE=\"word-break: break-all;\"> How to do this:\r<BR>\n" );
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document.write( "Scores on a test are normally distributed with a mean of 78 and a standard deviation of 6.  A student is selected at random.  Which has the greatest probability? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #538901 by </B><A HREF=/tutors/aboutme.mpl?userid=Theo><B>Theo(13342)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Theo><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=Theo><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=538901\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> you calculate the z score.\r<BR>\n" );
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document.write( "z score is equal to (x - m) / sd\r<BR>\n" );
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document.write( "x is the score of the student who was selected at random.\r<BR>\n" );
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document.write( "m is the mean.<BR>\n" );
document.write( "s is the standard deviation.\r<BR>\n" );
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document.write( "if the score of the student was 78, the z score would be (78 - 78) / 6 = 0\r<BR>\n" );
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document.write( "if the score of the student was 100, the z score would be (100 - 78) / 6 = 22/6 = 3.67 rounded to 2 decimal places.\r<BR>\n" );
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document.write( "if the score of the student was 50, the z score would be (50 - 78) / 6 = -4.67 rounded to 2 decimal places.\r<BR>\n" );
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document.write( "the greatest probability is determined by looking up the z score in the z score table and determining what the probability is.\r<BR>\n" );
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document.write( "i would need to know what your possible answers are in order to help you with that.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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