document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=263245>Question 263245</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The fill weight of a certain brand of adult cereal is normally distributed with a mean of 920 grams and a standard deviation of 5 grams.  If we select one box of cereal at random from this population, what is the probability that it will weigh less than 915 grams? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #194034 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=194034\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The fill weight of a certain brand of adult cereal is normally distributed with a mean of 920 grams and a standard deviation of 5 grams. If we select one box of cereal at random from this population, what is the probability that it will weigh less than 915 grams?<BR>\n" );
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document.write( "1st: Find the z-value of 915<BR>\n" );
document.write( "z(915) = (915-920)/5 = -1<BR>\n" );
document.write( "Then P(x< 915) = P(z < -1) = normalcdf(-100,-1) = 0.1587<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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