document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1072326>Question 1072326</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Cost of domestic airfare follows a normal distribution with a mean of $385 dollars and a standard deviation of 100. Using this information,determine what is the probability that domestic airfare will Cost $250 or less<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 #687226 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=687226\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Cost of domestic airfare follows a normal distribution with a mean of $385 dollars and a standard deviation of 100. Using this information,determine what is the probability that domestic airfare will Cost $250 or less<BR>\n" );
document.write( "z(250) = (250-385)/100 = -135/100 = -1.35<BR>\n" );
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document.write( "P(x <= 250) = P(z<= -1.35) = normalcdf(-100,-1.35) = 0.0885<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H.<BR>\n" );
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