document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=59209>Question 59209</A>: <I><SPAN STYLE=\"word-break: break-all;\"> pleae help me in this <BR>\n" );
document.write( "let abowl contain 10 chips of he same size and shape , one and only one of these  chips is red , continue to draw chips from the bowl , one at atime and at random without replacement , until red chip is drawn , <BR>\n" );
document.write( "1.	find the pdf. Of X , the number of trials needed to draw the red chip<BR>\n" );
document.write( "2.	compute p(X< or equal 4 ) <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 #40748 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=40748\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> let abowl contain 10 chips of he same size and shape , one and only one of these  chips is red , continue to draw chips from the bowl , one at atime and at random without replacement , until red chip is drawn , <BR>\n" );
document.write( "1.	find the pdf. Of X , the number of trials needed to draw the red chip<BR>\n" );
document.write( "P(1)=1/10<BR>\n" );
document.write( "P(2)=(9/10)(1/9)=1/10<BR>\n" );
document.write( "P(3)=(9/10)(8/9)(1/8)=1/10<BR>\n" );
document.write( "...<BR>\n" );
document.write( "P(10)=(9/10)(8/9)(7/8)...(1/2)(1/1)=1/10<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "E(X)=(1/10)(1+2+3+...+9+10)=5.5<BR>\n" );
document.write( "---------<BR>\n" );
document.write( "2.	compute p(X< or equal 4 ) \r<BR>\n" );
document.write( "\n" );
document.write( "=4/10<BR>\n" );
document.write( "=================<BR>\n" );
document.write( "Cheers,<BR>\n" );
document.write( "Stan H. </SPAN>\n" );
document.write( "</TD></TR></TABLE>\n" );