Author Question: If X and Y are random variables, the sum of all the conditional probabilities of X given a specific ... (Read 42 times)

littleanan · **on:** Jun 24, 2018

If X and Y are random variables, the sum of all the conditional probabilities of X given a specific value of Y will always be:
a. 0.0
b. 1.0
c. the average of the possible values of X.
d. the average of the possible values of Y.

Question 2

A statistical measure of the strength of the relationship between two random variables X and Y is referred to as the:
a. expected value
b. variance
c. covariance
d. standard deviation