Two events are independent events when the occurrence of one event does not affect the occurrence of the other event. Two events are dependent events when the occurrence of one event does affect the occurrence of the other event..
To test weather A or B are independent, calculate P(A),p(B),and P(A n B), and than check weather P(A n B) equals P(A)P(B). If they are equal,A and B are independent if not they are dependent