A joint probability distribution for discrete random variables X and Y is denoted by ________. A)P(X_i,Y_i)= Xi × Yi B)P(X = x,Y = y)= f(x,y) C)P(X Y)= f(x,y) D)P(j(x),j(y))

Question

A joint probability distribution for discrete random variables X and Y is denoted by ________. A)P(X_i,Y_i)= Xi × Yi B)P(X = x,Y = y)= f(x,y) C)P(X > Y)= f(x,y) D)P(j(x),j(y))

Quizplus · Accepted Answer

The notation P(X = x,Y = y) is commonly used to represent a joint probability distribution for discrete random variables X and Y. Choice A uses unfamiliar notation and is missing key information such as the probability function, while choice C is an inequality and not a joint probability distribution. Choice D uses j(x) and j(y) without defining what they represent or how they are related to the joint probability distribution.

A Joint Probability Distribution for Discrete Random Variables X and Y