document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1050605>Question 1050605</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A new car that runs on electricity and gasoline is advertised as getting 65 mpg with a standard deviation of 6.9. If you test drive a car, what is the probability that it will get between 50 and 65 mpg? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #666162 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=666162\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A new car that runs on electricity and gasoline is advertised as getting 65 mpg with a standard deviation of 6.9. If you test drive a car, what is the probability that it will get between 50 and 65 mpg? <BR>\n" );
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document.write( "z(50) = (50-65)/6.9 = -15/6.9 = -2.1739<BR>\n" );
document.write( "z(65) = 0<BR>\n" );
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document.write( "P(50 < x < 65) = P(-2.1739 < z < 0) = normalcdf(-2.1739,0) = 0.4851<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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