document.write( "Question 59693: please help me in this problem
\n" ); document.write( "for each of the following find constant c so that f(X) satisfies the condition of being apdf of one random variable x
\n" ); document.write( "1.f(X)=c(2/3)^x , x=1,2,3,...., zero elsewhere.
\n" ); document.write( "2.f(X)=cx, x=1,2,3,4,5,6 , zero elsewhere \n" ); document.write( "
Algebra.Com's Answer #40970 by stanbon(75887)\"\" \"About 
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find constant c so that f(X) satisfies the condition of being apdf of one random variable x
\n" ); document.write( "1.f(X)=c(2/3)^x , x=1,2,3,...., zero elsewhere.
\n" ); document.write( "You haven't specified where X ends so I'll assume it ends at 6.
\n" ); document.write( "If that is true you get:
\n" ); document.write( "f(1)=(2/3)c
\n" ); document.write( "f(2)=(4/9)c
\n" ); document.write( "f(3)=(8/27)c
\n" ); document.write( "f(4)=(16/81)c
\n" ); document.write( "f(5)=(32/243)c
\n" ); document.write( "f(6)=(64/729)c
\n" ); document.write( "Add those up.
\n" ); document.write( "Set the sum = to 1
\n" ); document.write( "Solve for \"c\".
\n" ); document.write( "------------
\n" ); document.write( "2.f(X)=cx, x=1,2,3,4,5,6 , zero elsewhere
\n" ); document.write( "Same procedure as in #1.
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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