A Note on Moment Generating Function of a Linear Combination of Order Statistics from a Bivariate Laplace Distribution

In this note we propose an extended skew-laplace distribution. we obtain explicit expressions for moment generating function and the two first moments of this distribution. next, we show that the distribution of a linear combination of order statistics from a bivariate laplace distribution can be expressed as a mixture of extended skew- laplace distributions. this mixture representation enables us to derive moment generating function and moments of this linear combination