document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=90232>Question 90232</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Mean equal to 15 and standard deviation equal to 5. Find the probabilities associated with getting:<BR>\n" );
document.write( "a. A 15 or above<BR>\n" );
document.write( "b. Between a 15 and an 18<BR>\n" );
document.write( "c. A 13 and above<BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #65503 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=65503\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Mean equal to 15 and standard deviation equal to 5. Find the probabilities associated with getting:<BR>\n" );
document.write( "a. A 15 or above<BR>\n" );
document.write( "Since 15 is the mean,P(15 or above) = 1/2 or 0.50<BR>\n" );
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document.write( "b. Between a 15 and an 18<BR>\n" );
document.write( "15 has a z-score of 0; 18 has a z-score of (18-15)/5 = 3/5=0.6<BR>\n" );
document.write( "Using a z chart P(0<z<0.6) = 0.2257<BR>\n" );
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document.write( "c. A 13 and above<BR>\n" );
document.write( "P(z>0.6) = 0.50001-0.2257 = 0.2743<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.\r<BR>\n" );
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