What is the formula for the mean of a binomial distribution?
? = n * p
What is the formula for the standard deviation of a binomial distribution?
? = ?(n
p
p * (1-p))
How do you show the distribution of a binomial distribution?
X ~ B(n, p)
What is the formula for the mean of a geometric distribution?
? = 1/p
What is the formula for the standard deviation of a geometric distribution?
? = ?((p^2)/(1-p))
How do you show the distribution of a geometric distribution?
X ~ g(p)
What are the qualifications of both geometric and binomial distribution?
1. All trials are independent
2. All outcomes have the same probability of occurring.
3. Only two categories- success and failure
What is the defining characteristic of a binomial distribution?
Having a set number of trials.
What is the defining characteristic of a geometric distribution?
Stopping the experiment when the first success occurs.