document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=84937>Question 84937</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/0205459587/algebrahomeworkh>Elementary Statistics in Social Statistics</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Suppose that you purchase a lottery ticket that contains two numbers and a letter, such as \r<BR>\n" );
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document.write( "3    7    9\r<BR>\n" );
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document.write( "Alright this is what i have so far for #15\r<BR>\n" );
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document.write( "A. What is the probability that you match the first?<BR>\n" );
document.write( "37P<BR>\n" );
document.write( "3P7<BR>\n" );
document.write( "73P<BR>\n" );
document.write( "7P3<BR>\n" );
document.write( "P73<BR>\n" );
document.write( "P37\r<BR>\n" );
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document.write( "18 chances\r<BR>\n" );
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document.write( "So it has two chances of being first.<BR>\n" );
document.write( "P= number of times the out come or events can occur<BR>\n" );
document.write( "2 divided by 18=.11\r<BR>\n" );
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document.write( "B. What is the probability that you match the second digit?<BR>\n" );
document.write( "Same thing 18 chances<BR>\n" );
document.write( "2 divided by 18=.11\r<BR>\n" );
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document.write( "C. What is the probability that you do not match the first digit?<BR>\n" );
document.write( "17 divided by 18 =.88 or rounded .89\r<BR>\n" );
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document.write( "D. What is the probability  that you match both the first and the second digits?<BR>\n" );
document.write( ".89 is the answer but i don't know how to get it. please show me the formula. \r<BR>\n" );
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document.write( "E.What is the probability that you match the letter?\r<BR>\n" );
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document.write( "1 chance divided by 26 letters in the alphabet = .038 or rounded .04\r<BR>\n" );
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document.write( "F. What is the probability of a perfect match (both the digits and the letter)?\r<BR>\n" );
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document.write( "not sure how to get this one either. please show me the work and the formula<BR>\n" );
document.write( " </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #61204 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=61204\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> Prob of matching 1st digit; 1/10<BR>\n" );
document.write( "Prob of matching 2nd digit: 1/10<BR>\n" );
document.write( "Prob of matching letter: 1/26<BR>\n" );
document.write( "Prob of matching two digits: 1/10 * 1/10 = 1/100<BR>\n" );
document.write( "Prob of matching two digits and the letter: 1/100 * 1/26 = 1/2600<BR>\n" );
document.write( "===========<BR>\n" );
document.write( "Each event is independent so you multiply the probabilities of each<BR>\n" );
document.write( "of the pieces to get the probility of the whole pattern.<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );