Unformatted text preview: Addition rule: ( 29 ( 29 ( 29 j i j i x x x x Prob Prob or Prob + = • • Multiplication rule: ( 29 ( 29 ( 29 j i j i x x x x Prob Prob and Prob × = • Expected value E ( X ) or μ ( 29 ( 29 ∑ = = N i i i x x X E 1 Prob • Variance σ 2 and standard deviation σ . ( 29 ( 29 ∑ = μ= σ N i i i x x 1 2 2 Prob 2 σ = σ Discrete R.V. Key Concepts 1 of 1 © 2009 Harvey Singer...
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 Fall '08
 SINGER
 Variance, PROB, Harvey Singer

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