document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=533222>Question 533222</A>: <I><SPAN STYLE=\"word-break: break-all;\"> If four dogs are picked up from the Veterinarian and they are returned to their owners at random, what is the probability that at least one owner receives the wrong dog?   Round your answer to two decimal places.  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #351019 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=351019\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> If four dogs are picked up from the Veterinarian and they are returned to their owners at random, what is the probability that at least one owner receives the wrong dog? Round your answer to two decimal places. <BR>\n" );
document.write( "----<BR>\n" );
document.write( "Binomial with n = 4 and p(correct dog) = 1/4<BR>\n" );
document.write( "-----<BR>\n" );
document.write( "P(1<= x <=4) = 1 - P(x = 0) = 1-(3/4)^4 = .6836<BR>\n" );
document.write( "======================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );