I have found values, but I can not compare Var(X|X>=1) with Var(X). Can you check and help me, please?
E(X|X>=1)=np/(1-(1-p)^n)
2026-04-02 03:15:55.1775099755
X has binomial distribution (n,p). Need to fond E(X|X>=1), v(X|X>=1). Compare with E(x), V(x).
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