document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1182336>Question 1182336</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The average price of a personal computer(PC) is $949. If the computer prices are approximately normally distributed and the population standard deviation is $100, what is the probability that a randomly selected PC costs more than $1200? (Please answer in decimal and round the answer to three decimal places) </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #812455 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=812455\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> average (mean) is 949<BR>\n" );
document.write( "standard deviation is 100<BR>\n" );
document.write( "you want to find the probability that a randomly selected computer costs more than 1200.\r<BR>\n" );
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document.write( "z-score = (x - m) / s<BR>\n" );
document.write( "x is the raw score<BR>\n" );
document.write( "m is the mean<BR>\n" );
document.write( "s is the standard deviation\r<BR>\n" );
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document.write( "formula becomes:\r<BR>\n" );
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document.write( "z = (1200 - 949) / 100 = 2.51\r<BR>\n" );
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document.write( "probability of a price greater than that would be .0060365747 = .006 rounded to 3 decimal places.<BR>\n" );
document.write( " </SPAN>\n" );
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