If you are conducting an experiment where the probability of a success is 0.2 per day and you are interested in finding the probability of 4 successes in in three days, the correct probability function to use is
A) the standard normal probability density function
B) the normal probability density function
C) the Poisson probability function
D) any probability as long as the tables are available

Question

Quizplus · Accepted Answer

The situation described has a low probability of success and a high number of trials (3 days). This scenario is well modeled by the Poisson probability function, which is used to calculate the probability of a certain number of events occurring within a given interval of time or space, given a certain average rate of occurrence. The Poisson probability function assumes that the number of events in any interval is independent of the number of events in other intervals, which is appropriate in this scenario. The other options are not appropriate for this scenario.

If You Are Conducting an Experiment Where the Probability of a Success