1. For a binomial distribution with , explain how to determine the smallest and largest values of p.

1. For a binomial distribution with , explain how to determine the smallest and largest values of p that pass the rule-of-thumb test for using a normal distribution as a suit-able approximation.

2. (A) If 120 scores are chosen from a normal distribution with mean 75 and standard deviation 8, how many scores x would be expected to satisfy 67 ≤ x ≤ 83?

(B) Use a graphing calculator to generate 120 scores from the normal distribution with mean 75 and standard deviation 8. Determine the number of scores x such that 67 ≤ x ≤ 83, and compare your results with the answer to part (A).