Therefore s2 and s would be rescaled by multiplying

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Unformatted text preview: = 5061.1 n −1 9 −1 s = 5061.1 = 71.14 Yes, the rescaling is by a factor of 10. Therefore, s2 and s would be rescaled by multiplying s2 by 102 (resulting in 5061.1) and s by 10 (71.14). Subtracting 30 from each value has no affect on the variance or standard deviation. This is because n n i =1 6-96 V (aX + b) = a 2V ( X ) . i =1 ∑ ( x i − a ) 2 = ∑ ( xi − x ) 2 + n( x − a ) 2 ; The sum written in this form shows that the quantity is minimized when a = x . n 6-97 n ∑ (xi − x )2 and ∑ (xi − μ )2 Of the two quantities i =1 given that x...
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This document was uploaded on 02/09/2014.

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