Discrete Random Variables (DRV)

Discrete Random Variables (DRV)

The random variable \(X\) has probability distribution

\(\mathrm{P}\left( X=x \right)=c\left( \frac{2}{7} \right)^{x}\) for \(x=0,1,2,3,...\)

Find the value of the constant \(c\).

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Answer:\(\frac{5}{7}\)

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