Tree diagrams, also known as probability trees or decision trees, are quite versatile and may be useful in many fields, including finance.

Tree diagrams are a visual way of showing all possible outcomes of two or more events. Each branch is a possible outcome and is labelled with a probability. Two events are independent if the ...

Question A bag contains 4 blue counters and 3 red counters. A box contains 5 blue counters and 2 red counters. Complete the tree diagram and work out the probability of selecting two red counters.