document.write( "Question 632891: Hi! Can someone please help me with this problem? I have no idea how to do this and I am completely confused. Thank you very much for your help!\r
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\n" ); document.write( "\n" ); document.write( "Consider the probability distribution shown below and answer the following questions. Show calculations for each computation.
\n" ); document.write( "x -4 -3 -2 -1 0 1 2 3 4
\n" ); document.write( "P(x) 0.02 0.07 .10 .15 .3 .18 .10 .06 .02\r
\n" ); document.write( "\n" ); document.write( "Calculate μ
\n" ); document.write( "Calculate σ^2 and σ
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Algebra.Com's Answer #398526 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!

 
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document.write( "Hi,
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document.write( "Calculate the Expected Value(Sum of PX) = μ = 0
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document.write( "Then Calculate the Variance(Sum of P[X-μ]^2) = 2.94
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document.write( "SD =  
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document.write( "X	P	PX	P[X-μ]^2    
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document.write( "-4	0.02	-0.08	0.32   
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document.write( "-3	0.07	-0.21	0.63
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document.write( "-2	0.1	-0.2	0.4
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document.write( "-1	0.15	-0.15	0.15
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document.write( "0	0.3	0	0
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document.write( "1	0.18	0.18	0.18
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document.write( "2	0.1	0.2	0.4
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document.write( "3	0.06	0.18	0.54
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document.write( "4	0.02	0.08	0.32
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document.write( "Sum		0	2.94
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