document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=388965>Question 388965</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A set of normally distributed student test scores has a mean of 80 and a standard deviation of 4. Determine the probability that a randomly selected score will be between 74 and 82. Express your answer as a decimal number, rounded to the nearest thousandth. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #275419 by </B><A HREF=/tutors/aboutme.mpl?userid=stanbon><B>stanbon(75887)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=stanbon><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=275419\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A set of normally distributed student test scores has a mean of 80 and a standard deviation of 4. Determine the probability that a randomly selected score will be between 74 and 82. Express your answer as a decimal number, rounded to the nearest thousandth.<BR>\n" );
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document.write( "z(74) = (74-80)/4 = -3/2<BR>\n" );
document.write( "z(82) = (82-80)/4 = 1/2<BR>\n" );
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document.write( "P(74 < x < 82) = P(-3/2 < z < 1/2) = 0.6247<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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