Unformatted text preview: 2 = 1 8 85 = 3 3 2 = 9 05 = 55 2 = 25 6 65= 1 1 2 = 1 Mean = 5 SS = ∑(X – μ) 2 = 1+9+20+1 = 36 s 2 = SS/n = 36/4 = 9 (remember: the problem is dealing with a population, but if we were dealing with a SAMPLE, we would use n1 in the denominator instead of just n.) s = √(s 2 ) = √9 = 3...
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 Fall '07
 Lewin
 Standard Deviation, Power of two

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