Which of the following best describes the exponential distribution?
A)it produces probabilities for intervals of space, time, or distance between successive occurrences of a Poisson event
B)it is a discrete distribution that focuses on the number of events in a time period
C)it is similar to the normal distribution but focuses on distance
D)the mean and variance are the same
E)all of the above

Question

Quizplus · Accepted Answer

The exponential distribution is used to model the time between events in a Poisson process, describing the intervals of time, space, or other continuous measures between events. It is not discrete (ruling out B), does not focus on distance in the way described (ruling out C), and its mean and variance are not the same (the variance is the square of the mean, ruling out D).

Which of the Following Best Describes the Exponential Distribution