document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=44038>Question 44038</A>: <I><SPAN STYLE=\"word-break: break-all;\"> The probability of winning on a slot machine is 5%.  If a person plays the machine 500 times, find the probability of winning 30 times.  Use the normal approximation to the binomial distribution.<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 #28967 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=28967\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> The probability of winning on a slot machine is 5%.  If a person plays the machine 500 times, find the probability of winning 30 times.  Use the normal approximation to the binomial distribution.\r<BR>\n" );
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document.write( "Find the area under the normal curve over the interval (29.5,30.5)<BR>\n" );
document.write( "when the mean =np=500*0.05 and the standard deviation = sqrt(500*0.05*0.95)\r<BR>\n" );
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document.write( "I get an answer of 0.03024\r<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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