Question:medium

If \(P(X=k)=c\left(\frac{2}{7}\right)^k,\ k=0,1,2,\dots\), then \(P(X=2)=\)

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Recognize geometric distributions and use infinite series sum formula.

Updated On: Jun 22, 2026

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P(x)	k	2k	4k	6k	8k