Packet 8: Tossup 15

Nonlinearity, heteroscedasticity, and this property are decreased by Box-Cox transforms. A quantity named for this property is obtained from the third derivative (-5[1])of the moment-generating function of a random (-5[1])variable X. (15[3])The (15[1])extent of this property (-5[1])is given by (15[1])“3 times the difference (-5[1])between the (*) mean and median, all over the standard deviation.” (10[1])Log transformations make data with this property (10[1])more (-5[2])normally (10[2])distributed. The mean (10[1]-5[1])is greater than the median (10[1]-5[1])in data (10[1])with the right (10[1])form (10[3])of this (10[2])property, (10[12])whose (10[1])distributions (10[3])have a long right tail. (10[1])For 10 points, what property (10[1])describes the asymmetry (10[1])of a distribution of (10[1])data? ■END■ (10[5]0[1])

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