document.write( "Question 472373: x 1 2 3 4
\n" ); document.write( "P(x) 0.3 1/5 1/5 3/10\r
\n" ); document.write( "\n" ); document.write( "x 3 6 8
\n" ); document.write( "P(x) 0.2 3/5 3/10\r
\n" ); document.write( "\n" ); document.write( "x 20 30 40 50
\n" ); document.write( "P(x) 0.1 0.1 0.5 0.3\r
\n" ); document.write( "\n" ); document.write( "Determine whether each of the distributions given below represents a probability distribution. Justify your answer. \n" ); document.write( "

Algebra.Com's Answer #324058 by robertb(5830) $\"\"$ $\"About$

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The first and the 3rd would be pdf's. The 2nd is not, because the sum of the probabilities is greater than 1. \n" ); document.write( "

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