Chapter 5 Probability Distributions

Question 1

What are the 4 assumptions for a binomial distribution?

Answer 1

1. each outcome is independent of the other
2. probability is constant from trial to trial
3. each outcome is classified as “event of interest” or “not event of interest”
4. we are dealing with discrete variables

Question 2

What is the difference between AND/OR in a probability distribution calculation?

Answer 2

AND = multiply the probabilities together

OR = add the probabilities together

Question 3

What is the major difference between a Binomial and Poisson distribution?

Answer 3

Binomial - will give you more than one piece of information

Poisson - will give you an average in an area of opportunity