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# stats notes - Page 268 and 270 Coefficient of variation How...

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15:03 Variances and standard deviation For proportional distributions E[P(X) * X] = u E[(x-u)^2 P(x)] = o^2 E[x^2 * P(x)]-u^2 = o^2 Square root o^2= o Relationship with standard deviation

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Unformatted text preview: Page 268 and 270 Coefficient of variation How varied is the variable Cvar=S/x(line of it) *100% Cvar= o/u*100% Set scores/z score Z= (x-u)/o M=n*p 15:03 15:03...
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## This note was uploaded on 11/07/2011 for the course SPEA-K 300 taught by Professor Wakhungu during the Fall '09 term at Indiana.

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stats notes - Page 268 and 270 Coefficient of variation How...

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