document.write( "Question 402732:

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document.write( "The following is not a discrete probability distribution because \r
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document.write( " x          -5      -4         -3       -2     -1   
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document.write( "p(x)        0.20   0.20      0.23     0.54    0.29 \n" );
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Algebra.Com's Answer #284895 by Edwin McCravy(20055)  
You can put this solution on YOUR website!
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document.write( "Because 0.20 + 0.20 + 0.23 + 0.54 + 0.29 = 1.46\r\n" );
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document.write( "and to be a discrete probability distribution function all the\r\n" );
document.write( "probabilities must be positive, less than 1 and their sum must\r\n" );
document.write( "be 1.  Their sume here is 1.46, not 1.  That is why it is not a\r\n" );
document.write( "discrete probability distribution function.\r\n" );
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document.write( "[Note: it is NOT because the x-values are negative.  x-values can\r\n" );
document.write( "be any numbers, positive negative or zero.]\r\n" );
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document.write( "Edwin
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