- I need to compute the probability of getting more than x "successes" in a large number of trials of an event with a small probability .
- Exact Binomial won't work, and the Poisson approximation does not seem appropriate.
Use the normal approximation to the binomial distribution to determine (to four decimals) the probability of getting 7 heads and 7 tails in 14 flips of a balanced coin. To determine the error of this approximation, also consult the "Statistical Tables" table of binomial probabilities.
Find the probability of X successes in table B of appendix A.
I believe they are using the the binomial probability formula and im not sure how to start if you can give a step by step anwser explanation that would be helpful.