Find the skew ness of the exponential distribution

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Let X be a random variable with mean μ and standard deviation σ. The skew ness of X is defined as

Skew ness is a measure of the asymmetry of a distribution. Distributions that are symmetric about μ have skew ness equal to 0. Distributions that are right skewed have positive skew ness. Left-skewed distributions have negative skew ness.

(a) Show that

(b) Use the mgfs to find the skew ness of the exponential distribution with parameter λ.

Reference no: EM131107173

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