Two events are independent. What does knowing that one of them happened tell you about the other?

1. Events are dependent when knowing about one of them says something about the other. 2. Independent events give no information about one another. 3. So the probability of one event is not affected by whether the other one happened. 4. For dependent events a tree diagram is drawn, because the second stage changes with the first. _Source: Siyavula Mathematics Grade 11 (Everything Maths, CC BY 4.0), Chapter 10: Probability_