AP statistics chapter 17 by Stats modelling the world third edition by David E. Bock

● Bernoulli trials, if ... - 1. There are two possible outcomes. 2. The probability of
success is constant. 3. The trials are independent.
● Geometric probability model - A Geometric model is appropriate for a random
variable that counts the number of Bernoulli trials until the first success.
● Binomial probability model - A Binomial model is appropriate for a random
variable that counts the number of successes in a fixed number of Bernoulli
trials.
● 10% Condition - When sampling without replacement, trials are not independent.
It’s still okay to proceed as long as the sample is smaller than 10% of the
population. Success/Failure Condition - For a Normal model to be a good
approximation of a Binomial model, we must expect at least 10 successes and
10 failures.