1. The expected value of a binomial distribution is the average number of successes out of n trials.

2. The expected value of a binomial distribution is µ ＝ np.

8. For (a), find the graph showing the most common result being 30% of the trials are successes.

10. Only 5% of trials are successes, so it is likely that r will be very low and unlikely that it will be high.

12. For (a), do binompdf(n,p,r), where n is 8 syringes, p is 1% chance of being defective, and r is done separately for each possible outcome, 0 through 8.