Find the standard deviation, $\sigma$, for the binomial distribution which has $n = 48$ and $p = 3 / 5$. Round your answer to the nearest hundredth.
A) $\sigma = 7.51$
B) $\sigma = 3.39$
C) $\sigma = 6.66$
D) $\sigma = 0.98$

Question

Quizplus · Accepted Answer

The standard deviation of a binomial distribution with parameters $n$ and $p$ is given by $\sqrt{np(1-p)}$. Plugging in $n = 48$ and $p = 3/5$, we get $\sqrt{48 \cdot (3/5) \cdot (2/5)} \approx 3.39$. Therefore the answer is B.

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

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