document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1062260>Question 1062260</A>: <I><SPAN STYLE=\"word-break: break-all;\"> We throw the same 12-sided (dodecahedron) dice (with numbers 1 to 12) 200 times.<BR>\n" );
document.write( "What is the probability that we'll get 70-90 prime numbers?  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #677134 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=677134\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> the prime numbers on the die are<BR>\n" );
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document.write( "2, 3, 5 , 7 , 11<BR>\n" );
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document.write( "the probability(Pr) of rolling a prime number on 1 roll is 5/12<BR>\n" );
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document.write( "we use the binomial probability distribution<BR>\n" );
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document.write( "Pr ( 70 = < X < = 90 ) = Pr ( X < = 90 ) - Pr ( X < 70 ) <BR>\n" );
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document.write( "use binomial probability distribution with n=200, r=70 or 90, p = 5/12, q = 7/12<BR>\n" );
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document.write( "Pr ( 70 = < X < = 90 ) = 0.82 - 0.02 = 0.80<BR>\n" );
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