document.write( "Question 277629: The number of accidents that occur at the intersection
\n" ); document.write( "of Pine and Linden streets between 3 p.m. and
\n" ); document.write( "6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities
\n" ); document.write( "of 0.84, 0.13, 0.02, and 0.01, respectively.
\n" ); document.write( "Graph this probability distribution. What is the
\n" ); document.write( "expected value for the random variable given the
\n" ); document.write( "number of accidents? \n" ); document.write( "
Algebra.Com's Answer #202153 by stanbon(75887)\"\" \"About 
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The number of accidents that occur at the intersection
\n" ); document.write( "of Pine and Linden streets between 3 p.m. and
\n" ); document.write( "6 p.m. on Friday afternoons is 0, 1, 2, or 3, with probabilities
\n" ); document.write( "of 0.84, 0.13, 0.02, and 0.01, respectively.
\n" ); document.write( "Graph this probability distribution. What is the
\n" ); document.write( "expected value for the random variable given the
\n" ); document.write( "number of accidents?
\n" ); document.write( "----------------------
\n" ); document.write( "The Graph.
\n" ); document.write( "Put 0,1,2,3 on the horizontal axis
\n" ); document.write( "Plot the probabilities as the y-values associated with 0,1,2,3
\n" ); document.write( "-------------------------------------------
\n" ); document.write( "E(x) = 0*0.84+1*0.13+2*0.02 + 3*0.01
\n" ); document.write( "= 0 + 0.13 + 0.04 + 0.03
\n" ); document.write( "= 0.21
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
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