Independent Variables Inference (Expectation, Var, Std)

Context:

• Source:
• Relation:

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Insight:

• $E[C-S]=E[C]-E[S]$
• $Var[C-S]=Var[C]+Var[S]$
• $std[C-S]=\sqrt{Var[C-S]}=\sqrt{Var[C]+Var[S]}$