The Normal Approximation to the Binomial Distribution (VCE SSCE Mathematical Methods): Quizzes

When dealing with large sample sizes

Number of trials $n$ and probability $p$

When $n$ is small and $p$ is close to 0 or 1

They resemble a bell-shaped curve

$\mu = np$

$\sigma = \sqrt{np(1-p)}$

5

When $p$ is not too close to 0 or 1

They are exactly the same

Both $np$ and $n(1-p)$ exceed 5