For the binomial distribution with the given values for n and p, state whether or not it is suitable to use the normal distribution as an approximation.
-$$\mathrm { n } = 20 \text { and } \mathrm { p } = 0.6$$
A) Normal approximation is suitable.
B) Normal approximation is not suitable.

Question

Quizplus · Accepted Answer

The normal approximation is suitable if both np and n(1-p) are greater than or equal to 5. Here, np = 20 * 0.6 = 12 and n(1-p) = 20 * 0.4 = 8, both of which are greater than 5.

For the Binomial Distribution with the Given Values for N n=20 and p=0.6\mathrm { n } = 20 \text { and } \mathrm { p } = 0.6n=20 and p=0.6

For the Binomial Distribution with the Given Values for N $\mathrm { n } = 20 \text { and } \mathrm { p } = 0.6$