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Assume that a random variable XXX follows a normal distribution, let Y=A+BXY = A + B XY=A+BX, where AAA and BBB are both constant values and bbb is negative, which of the following statements is correct?
A
The mean of YYY is identical to the mean of XXX.
B
The location shift of AAA has no effect on the variance of YYY.
C
The skewness of YYY is identical to the skewness of XXX.
D
The kurtosis is affected by decreasing linear transformations.
