document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=179690>Question 179690</A>This question is from textbook <A HREF=http://www.amazon.com/exec/obidos/ASIN/9780030923517/algebrahomeworkh>Theoretical and Experimental Probability</A><BR>\n" );
document.write( ": <I><SPAN STYLE=\"word-break: break-all;\"> Please you help me solve these problems.<BR>\n" );
document.write( "How do you know?<BR>\n" );
document.write( "Can you write everything that you solve its?<BR>\n" );
document.write( "6.) What is the probability that a random 2-digit number (00-99) does not end in 5?\r<BR>\n" );
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document.write( "8.) A clerk has 4 different letters that need to go in 4 different envelopes. What is the probability that all 4 letters are placed in the correct envelopes?\r<BR>\n" );
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document.write( "Please answer me as soon as you could, Thank you. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #134623 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=134623\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> 6.) What is the probability that a random 2-digit number (00-99) does not end in 5?<BR>\n" );
document.write( "----<BR>\n" );
document.write( "There are 100 numbers if you include 00.<BR>\n" );
document.write( "# that do not end in 5?<BR>\n" );
document.write( "10 ways to pick the tens digit<BR>\n" );
document.write( "9 ways to pick the ones digit<BR>\n" );
document.write( "So, 10*9 = 90 ways to have a two-digit number not ending in 5<BR>\n" );
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document.write( "Therefore P(2-digit not ending in 5) = 90/100 = 9/10<BR>\n" );
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document.write( "8.) A clerk has 4 different letters that need to go in 4 different envelopes. What is the probability that all 4 letters are placed in the correct envelopes? <BR>\n" );
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document.write( "# of possible arrangements: 4! = 24<BR>\n" );
document.write( "# of correct arrangements: 1<BR>\n" );
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document.write( "Probability of getting the right arrangement: 1/24<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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