Assume that you have a binomial experiment with p = 0.4 and a sample size of 50. The variance of this distribution is
A) 20.
B) 12.
C) 3.46.
D) 2.83.

Question

Quizplus · Accepted Answer

The variance ($\sigma^2$) of a binomial distribution is calculated using the formula $\sigma^2 = np(1-p)$, where $n$ is the sample size and $p$ is the probability of success. Here, $n = 50$ and $p = 0.4$, so $\sigma^2 = 50 \times 0.4 \times (1 - 0.4) = 50 \times 0.4 \times 0.6 = 12$.

Assume That You Have a Binomial Experiment with P =