document.write( "Question 478372: For the following probability distribution:
\n" ); document.write( "x P(x)
\n" ); document.write( "1 0.3
\n" ); document.write( "2 0.5
\n" ); document.write( "3 0.2
\n" ); document.write( "the mean, μ = _______ , and the standard deviation, σ = ____________ .
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #327762 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
For the following probability distribution:
\n" ); document.write( "x P(x)
\n" ); document.write( "1 0.3
\n" ); document.write( "2 0.5
\n" ); document.write( "3 0.2
\n" ); document.write( "the mean, μ = _______ , and the standard deviation, σ = ____________ .
\n" ); document.write( "----
\n" ); document.write( "I used my TI-84 calculator to get:
\n" ); document.write( "mean = 2
\n" ); document.write( "std = 0.8165
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H. \n" ); document.write( "
\n" );