108. a. Use derivatives of the moment generating function to obtain the mean and variance for the...

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108.

a. Use derivatives of the moment generating function to obtain the mean and variance for the Poisson distribution.

b. As discussed in Section 3.4, obtain the Poisson mean and variance from RX(t)  ln[MX(t)]. In terms of effort, how does this method compare with the one in part (a)?

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