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F21 (1) Ms(t)=E(e*) ) =e^(1-p) + " perdr 。 e" =1- p+ple\" d =1-p+|P)。 * --(1-t)x =1-p+ P, i<1 1-7 + 1-t
題型 126 *** Consider the distribution defined by the following distribution function: ſo if x<0 Ex(x)= for 0
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題型 126 *** Consider the distribution defined by the following distribution function: ſo if x<0 Ex(x)= for 0
題型 126 *** Consider the distribution defined by the following distribution function: ſo if x<0 Ex(x)= for 0<p<1 1 - pe", if x 20 This distribution is partly discrete and partly continuous (1) Find the moment generating function of X. (2) Use the mgf to find variance of x. 【淡江管科】
F21 (1) Ms(t)=E(e*) ) =e^(1-p) + " perdr 。 e" =1- p+ple\" d =1-p+|P)。 * --(1-t)x =1-p+ P, i<1 1-7 + 1-t
F21 (1) Ms(t)=E(e*) ) =e^(1-p) + " perdr 。 e" =1- p+ple\" d =1-p+|P)。 * --(1-t)x =1-p+ P, i<1 1-7 + 1-t