If n = 10 and $\pi = 0.70$ , then the standard deviation of the binomial distribution is
A)0.07
B)1.45
C)7.00
D)14.29

Question

Quizplus · Accepted Answer

The standard deviation of a binomial distribution is given by the formula $\sqrt{n\pi(1-\pi)}$, where $n$ is the number of trials and $\pi$ is the probability of success. Substituting $n = 10$ and $\pi = 0.70$, we get $\sqrt{10*0.70*(1-0.70)} = \sqrt{10*0.70*0.30} = \sqrt{2.1} \approx 1.45$.

If N = 10 And π=0.70\pi = 0.70π=0.70 , Then the Standard Deviation of the Binomial Distribution Is

If N = 10 And $\pi = 0.70$ , Then the Standard Deviation of the Binomial Distribution Is