document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=240348>Question 240348</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A pizza pub is open 7 days a week. The manager allows each of the three employees to select one day off a week. That is the probability all 3 select the same day given that all 3 select a day beginning with the same letter. </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #176133 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=176133\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> A pizza pub is open 7 days a week. The manager allows each of the three employees to select one day off a week. What is the probability all 3 select the same day given that all 3 select a day beginning with the same letter.<BR>\n" );
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document.write( "The only days beginning with the same letter are saturdaya and sunday.<BR>\n" );
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document.write( "P(all select the same | all select saturday or sunday)<BR>\n" );
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document.write( "P(all select saturday or sunday) = 2(1/2)^2 = 1/2<BR>\n" );
document.write( "P(all select the same AND all select saturday or sunday) = (2/7)^2<BR>\n" );
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document.write( "P(all select same | all select sat or sun) = (2/7)^2/(1/2) = 8/49<BR>\n" );
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document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
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