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.
-$$\mathrm { n } = 48 ; \mathrm { p } = 3 / 5$$
A) $\sigma = 0.98$
B) $\sigma = 3.39$
C) $\sigma = 6.66$
D) $\sigma = 7.51$

Question

Quizplus · Accepted Answer

The standard deviation of a binomial distribution is given by the formula $\sigma = \sqrt{np(1-p)}$. Substituting the given values, we get $\sigma = \sqrt{(48)(3/5)(2/5)} \approx 3.39$. Therefore, the best choice is B.

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