Problem

For the binomial distribution, which formula finds the standard deviation?
Choose the correct answer below.
$\sqrt{n p q}$
np
npq
$\sqrt{n p}$

Answer

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Answer

Final Answer: \(\boxed{\sqrt{n p q}}\)

Steps

Step 1 ：For the binomial distribution, the formula that finds the standard deviation is \(\sqrt{n p q}\), where n is the number of trials, p is the probability of success, and q is the probability of failure (1-p).

Step 2 ：Final Answer: \(\boxed{\sqrt{n p q}}\)

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