[" 77.In a Poisson distribution the vari...

[" 77.In a Poisson distribution the variate is "m" .The sum of the terms in even places in "],[" this distribution is "],[[" 1) "e^(-pi)," 2) "e^(-pi)cosh m," 3) "e^(-pi)sinh m," 4) "e^(-m)coth m]]

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