If n = 20 and p = 0.70,then the standard deviation of the binomial distribution is
A)0.14
B)2.05
C)14.0
D)14.7

Name: If n = 20 and p = 0.70,then the standard deviation of the binomial distribution is A)0.14 B)2.05 C)14.0 D)14.7
Brand: Quizplus
Rating: 4.8 (35 reviews)

Question

Quizplus · Accepted Answer

The standard deviation of a binomial distribution is given by the formula sqrt(np(1-p)). Therefore, plugging in n=20 and p=0.70, we get sqrt(20*0.70*0.30) = 2.05. So, the best choice is B.

If N = 20 and P = 0