A random variable X has its range {0, 1, 2, 3,...} if \p(\X = \r) = {c(r+1)}/3^\r for r = 0, 1, 2, .... then c =

AP and TS EAMCET Engineering Model Paper 17

Question : 38 of 160

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A random variable X has its range {0, 1, 2, 3,...} if p(X=r)=

c(r+1)

for r = 0, 1, 2, .... then c =

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