a. Approximate the probability that less than 21% of the sampled Kansas State students have listened to the album? (Note: Round final answers to 4 decimal places.)
b. Is it appropriate to use a normal distribution approximation to answer question a.?
multiple choice
Yes, because np >= 5 and n(1 - p) >= 5
Yes, because n >= 30
No, because np >= 5 and n(1 - p) >= 5
No, because n < 30