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The Skewness of the Distribution of a Random Variable Y E[(Y3μy)]σy2\frac { E \left[ \left( Y ^ { 3 } - \mu _ { y } \right) \right] } { \sigma _ { y } ^ { 2 } }

Question 3

Multiple Choice

The skewness of the distribution of a random variable Y is defined as follows:


A) E[(Y3μy) ]σy2\frac { E \left[ \left( Y ^ { 3 } - \mu _ { y } \right) \right] } { \sigma _ { y } ^ { 2 } }
B) E[(Yμy) J]E \left[ \left( Y - \mu _ { y } \right) ^ { J } \right]
C) E[(Y]μy]) ]σyJ\frac { E \left[ \left( Y ^ { ] } - \mu _ { y } ^ { ] } \right) \right] } { \sigma _ { y } ^ { J } }
D) E[(Yμγ) 3]σy3\frac { E \left[ \left( Y - \mu _ { \gamma } \right) ^ { 3 } \right] } { \sigma _ { y } ^ { 3 } }

Correct Answer:

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