Determine which of the given procedures describe a binomial distribution.
A)The number of tattoos in a group of 30 randomly selected college students.
B)The number out of the next ten customers at a hotdog stand order who order onions, assuming that each has the same probability of ordering onions.
C)The number of customers surveyed, while leaving a grocery store, until a customer responds that he or she spent more than fifty dollars.
D)The ages of every 5th person entering a department store.

Question

Quizplus · Accepted Answer

B describes a binomial distribution because it involves a fixed number of trials (ten customers), each trial has only two possible outcomes (ordering onions or not), the probability of success (ordering onions) is the same for each trial, and the trials are independent.

Determine Which of the Given Procedures Describe a Binomial Distribution