document.write( "<A HREF=/cgi-bin/jump-to-question.mpl?question=1153910>Question 1153910</A>: <I><SPAN STYLE=\"word-break: break-all;\"> Let 𝑝(𝑥)=(𝑥+3)15 𝑓𝑜𝑟 𝑥=1,2,3 be a probability mass function of X. \r<BR>\n" );
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document.write( "Calculate: <BR>\n" );
document.write( "i. P (X ≤ 2) (2 marks) <BR>\n" );
document.write( "ii. E(X) and (2marks) <BR>\n" );
document.write( "iii. 𝜎𝑥 (2 marks <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 #776235 by </B><A HREF=/tutors/aboutme.mpl?userid=ikleyn><B>ikleyn(52832)</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=776235\">put this solution on YOUR website!</A><BR><SPAN STYLE=\"word-break: break-all;\"> .\r<BR>\n" );
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document.write( "How the probability can be greater than 1 ?\r<BR>\n" );
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document.write( "Meanwhile, according to your formula, it is so, at given values of x.\r<BR>\n" );
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