In dealing with a pair of jointly distributed discrete random variables,the conditional probability distribution on one random variable,given specified values of another,is the:
A)collection of conditional probabilities.
B)product of marginal distributions.
C)square of the conditional probabilities.
D)quotient of the conditional probabilities.

Question

Quizplus · Accepted Answer

The conditional probability distribution of one random variable given specified values of another random variable is a collection of conditional probabilities. It gives the probabilities of the possible values of one random variable given that the other random variable takes one of the specified values. It is calculated by dividing the joint probability distribution of the two random variables by the marginal probability distribution of the specified value of the other random variable. This collection of conditional probabilities forms a new probability distribution for the first random variable, conditioned on the value of the second random variable.

In Dealing with a Pair of Jointly Distributed Discrete Random