Find the standard deviation, $\sigma$ , for the binomial distribution which has the stated values of n and p. Round your answer
to the nearest hundredth.
-$$\mathrm { n } = 29 ; \mathrm { p } = 0.2$$
A) $\sigma = 2.15$
B) $\sigma = - 0.26$
C) $\sigma = 6.27$
D) $\sigma = 5.42$

Question

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, $\sigma = \sqrt{29 \cdot 0.2 \cdot 0.8} = \sqrt{4.64} \approx 2.15$.

Find the Standard Deviation σ\sigmaσ , for the Binomial Distribution Which Has the Stated Values

Find the Standard Deviation $\sigma$ , for the Binomial Distribution Which Has the Stated Values