For the binomial distribution with the given values for n and p
-n = 15 and p = .2
A)Normal approximation is not suitable.
B)Normal approximation is suitable.

Question

Quizplus · Accepted Answer

The rule of thumb for the normal approximation to be suitable is that both np and n(1-p) should be greater than or equal to 10. Here, np = 15 * 0.2 = 3 and n(1-p) = 15 * 0.8 = 12. Since np is less than 10, the normal approximation is not suitable.

For the Binomial Distribution with the Given Values for N