document.write( "Question 718171: explain why this is or is nor a probability?
\n" ); document.write( "x=1,2,3,4
\n" ); document.write( "p(x)=0.2,0.3,0.4,0.1
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Algebra.Com's Answer #440782 by josmiceli(19441)\"\" \"About 
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It can't be a probability because the maximum value
\n" ); document.write( "for a probability is 1. This means that something is
\n" ); document.write( "100% certain to happen. So, 2,3 and 4 are not
\n" ); document.write( "probabilities. It is OK to have \"+p+=+0+\". That means
\n" ); document.write( "there is no probability at all that a certain event will happen.
\n" ); document.write( "\"+.1+\" is OK, too. This says there is a 1 out of 10 chance
\n" ); document.write( "that something will happen.
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