In: Statistics and Probability
Suppose a red six-sided die, a blue six-sided die, and a yellow six-sided die are rolled. Let
- X1 be the random variable which is 1 if the numbers rolled on the blue die and the yellow die are the same and 0 otherwise;
- X2 be the random variable which is 1 if the numbers rolled on the red die and the yellow die are the same and 0 otherwise;
- X3 be the random variable which is 1 if the numbers rolled on the red die and the blue die are the same and 0 otherwise;
Show that these three variables are pairwise independent but not independent.