Which pair of events is dependent? You get a head and a tail in two coin tosses with two different coins. You get a head and a tail in two coin tosses using the same coin twice. You pick two numbered billiard balls from a bag of balls one after the other without replacement. You draw two red cards one after the other with replacement.
Let's say there are 10 billiard balls 5 red and 5 blue. If you pick a blue ball on the first pick you had a 5/10 chance Now your chances of getting a red are only 5/9. What happened on the first pick affects what happens on the second (making it dependent)