document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1153493>Question 1153493</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A security code consists of a person's first and last initials and four digits. Use 8 decimals places.\r<BR>\n" );
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document.write( "(a) What is the probability of guessing a person's code on the first try?\r<BR>\n" );
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document.write( "(b) What is the probability of not guessing a person's code on the first try?\r<BR>\n" );
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document.write( "(c) You know a person's first name and that the last digit is odd. What is the probability of guessing this persons code?\r<BR>\n" );
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document.write( "(d) Are the statements in parts (a) - (c) examples of classical probability, empirical probability, or subjective probability? </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #775773 by </B><A HREF=/tutors/aboutme.mpl?userid=Boreal><B>Boreal(15235)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=Boreal><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=Boreal><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=775773\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> there are 26 choices for each of the first two and 10 for each digit<BR>\n" );
document.write( "the number of possibilities is therefore 26^2*10000=6,760,000<BR>\n" );
document.write( "the probability of guessing first try is 0.000000148<BR>\n" );
document.write( "the probability of not is 1- that or 0.99999985<BR>\n" );
document.write( "now 1*26*10*10*10*5 or 1 in 26000 or 0.00003846<BR>\n" );
document.write( "classic probability, no evidence for actual experimental, and not subjective, since there is a specific rule. </SPAN>\n" );
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