The probability distribution of a random variable that is defined to be the number of successes obtained in a random sample selected without replacement from a finite population of N elements that contains r successes and N − r failures is
A) Poisson.
B) binomial.
C) hypergeometric.
D) discrete.

Question

Quizplus · Accepted Answer

This is the definition of a hypergeometric distribution. The population must be 20 times larger than the sample size.

The Probability Distribution of a Random Variable That Is Defined