document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1192184>Question 1192184</A>: <I><SPAN STYLE=\"word-break: break-all;\"> For each of the following, determine whether it can serve as the probability distribution of a random variable X.\r<BR>\n" );
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document.write( "1. P(X) = 1/8       for x= 1,2,3,4.....,8 \r<BR>\n" );
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document.write( "2. P(X) = 1/6       for x= 1,2,3,......,9 \r<BR>\n" );
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document.write( "3. P(X) = 3+×/3-×    for x= 1,2,3,4 \r<BR>\n" );
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document.write( "4. P(X) = 12/25x     for x=1,2,3,4,5  </SPAN>\n" );
document.write( "</I><HR><TABLE width=100%><TR><TD><B><A HREF=http://www.algebra.com/>Algebra.Com's</A> Answer #824084 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52776)</B></A><img src=\"/images/stars/stars-13.gif\" alt=\"\" >&nbsp;<A HREF=/tutors/aboutme.mpl?userid=ikleyn><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=ikleyn><BR>You can <A HREF=\"/cgi-bin/embed-solution.mpl?show=1&solution=824084\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "If the probabilities for all given values of x are all defined, all are non-negative and sum up to 1.0, then the answer is positive;\r<BR>\n" );
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document.write( "if not, then the answer is negative.\r<BR>\n" );
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document.write( "Having this key comprehensive instruction, you do the rest.\r<BR>\n" );
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document.write( " </SPAN>\n" );
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