Find the standard deviation, σ, for the binomial distribution with n = 38 and p = 0.4.
A) $\sigma = 3.02$
B) $\sigma = 6.29$
C) $\sigma = 0.61$
D) $\sigma = 7.14$

Question

Find the standard deviation, σ, for the binomial distribution with n = 38 and p = 0.4. 
A) $\sigma = 3.02$
B) $\sigma = 6.29$
C) $\sigma = 0.61$
D) $\sigma = 7.14$

Quizplus · Accepted Answer

The standard deviation for a binomial distribution is calculated using the formula $\sigma = \sqrt{n \cdot p \cdot (1-p)}$. Substituting the given values, $\sigma = \sqrt{38 \cdot 0.4 \cdot 0.6} = \sqrt{9.12} \approx 3.02$.

Find the Standard Deviation, σ, for the Binomial Distribution with N