Suppose two dice, one blue and one red, are rolled and the outcomes of each are recorded. We define the following two events: A: sum of the roll is 7 B. the result of the blue die is a number greater...

Suppose two dice, one blue and one red, are rolled and the outcomes of each are recorded. We define the following two events:

A: sum of the roll is 7

B. the result of the blue die is a number greater than 4

Are the two events, A and B, independent events?