2 questions (W9) - please answer in one paragraph or less.

(No plagiarism please, do not ask me to send the question to you directly and do not answer with a comment just to collect the money.)

1. The binomial distribution approaches normality as N increases. Explain how this relationship is useful for solving binomial problems involving N > 20. What are the advantages and disadvantages of this approach? Explain

2. You are using the binomial distribution to determine the probability of obtaining a result as extreme or more extreme than 10 P events in a situation where N = 12 and P = 0.40. You look up the probability of 8, 9, and 10 pluses in the appropriate column of Table B in your textbook, sum these probabilities, and then double the resulting sum. Will this procedure yield the correct probability? Assume no lookup or calculation errors. Explain.