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mgf is expectation of e^(tx)
since the distribution is discrete use summation
for mean , differentiate the mgf w.r.t t and then put t=0
for second raw moment ,differentiate the mgf twice w.r.t t and then put t=0
answer and some steps are given below
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mean of the poisson distribution ------mean of the poisson distribution
mean and variance of the discrete uniform distribution f(x) = 1/k , x = 1,2,...k mean and variance of discrete uniform
integration formulae
problems on integration
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list of formulae and notes on some math topics
collection of revision questions
formulae on sequences and series
(trig. formulae)
(integration formulae)
(other math problems without classification) or problem index
(formulae on differentiation)
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