Which of the following distributions describes the number of trials until an event occurs n times?
A)Binomial distribution
B)Geometric distribution
C)Negative binomial distribution
D)Poisson distribution
E)None of the above

Question

Which of the following distributions describes the number of trials until an event occurs n times?
A)Binomial distribution 
B)Geometric distribution 
C)Negative binomial distribution 
D)Poisson distribution 
E)None of the above

Quizplus · Accepted Answer

The negative binomial distribution describes the number of trials needed to obtain a fixed number of successes, unlike the geometric distribution which only describes the number of trials until the first success. The binomial distribution describes the number of successes in a fixed number of trials, and the Poisson distribution describes the number of occurrences of an event in a fixed interval of time or space.

Which of the Following Distributions Describes the Number of Trials