If a study is set up in such a way that a sample of people is surveyed to determine whether they have ever used a particular product, the likely probability distribution that would describe the random variable, the number who say yes, is a:
A) binomial distribution.
B) Poisson distribution.
C) uniform distribution.
D) continuous distribution.

Question

Quizplus · Accepted Answer

The binomial distribution is the correct choice because it describes the number of successes in a fixed number of independent Bernoulli trials, with a constant probability of success. In this case, each person surveyed can either say "yes" (success) or "no" (failure) to having used the product, fitting the criteria for a binomial distribution.

If a Study Is Set Up in Such a Way