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Effects of scaling

# Effects of scaling - 1 1 1 1 1 1 n n n i i i i i i i i i x...

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Question 2.57 in your text concerns the growth of an icicle over time. Length is measured in inches and is denoted by a y. Time is measured in minutes, x. a) 95 min, 53.4 min, 12.66 in, 8.5 in, 0.996 x y x s y s r b) 32.16 cm, 21.58 cm, 0.996 y y s r c) slope in inches is 0.158, in cm is 0.403 The correlation has no units. Refer to the formula for r to see why. Note that scaling the measure scales correspondingly the mean, standard deviation and slope. It leaves the correlation unchanged. x xc c x x cx n n n 2 2 2 2 2 2 2 ( ) ( ) ( ) 1 1 1 x x cx cx c x x s c s n n n
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Unformatted text preview: 1 1 1 1 1 1 n n n i i i i i i i i i x y x y x y x x y y x x cy cy x x y y s s s cs s s r n n n y y x x s cs b r r cb s s...
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