Home › AMUEEE › Mathematics › Binomial Distribution › The **standard deviation** of $X \sim B(n, p)$ is:
The **standard deviation** of $X \sim B(n, p)$ is:
A$\sqrt{np}$
B$np$
C$\sqrt{npq}$
D$npq$
Answer & Solution
Correct answer: C. $\sqrt{npq}$
$SD(X) = \sigma = \sqrt{\text{Var}(X)} = \sqrt{npq}$.
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