document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1114338>Question 1114338</A>: <I><SPAN STYLE=\"word-break: break-all;\"> A computer sends a packet of information along a channel and waits for a return signal acknowledging that the packet has been received. If no acknowledgment is received within a certain time, the packet is re-sent. Let X represent the number of times the packet is sent. Assume that the probability mass function of X is given by\r<BR>\n" );
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document.write( "p(x) ={ cx  , for x=0,1,2,...5<BR>\n" );
document.write( "        0 , otherwie\r<BR>\n" );
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document.write( "Find P(X = 2). <BR>\n" );
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document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #729316 by </B><A HREF=/tutors/aboutme.mpl?userid=rothauserc><B>rothauserc(4718)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=rothauserc><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/cgi-bin/show-face.mpl?user=rothauserc><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=729316\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> x = 0, 1, 2, 3, 4, 5<BR>\n" );
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document.write( "p(x) for x = 0, 1, 2, 3, 4, 5 = 0, c, 2c, 3c , 4c, 5c = 1<BR>\n" );
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document.write( "0 + c + 2c + 3c + 4c + 5c = 1<BR>\n" );
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document.write( "15c = 1<BR>\n" );
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document.write( "c = 1/15<BR>\n" );
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document.write( "p(x) for x = 0, 1, 2, 3, 4, 5 = 0, 1/15, 2/15, 3/15, 4/15, 5/15<BR>\n" );
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document.write( "P(X = 2) = 2/15<BR>\n" );
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