In Adelaide 60% of the licensed drivers are 30 years of age or older. Of all drivers 30 or older, 4% had a traffic violation in the last 12 months. Of all drivers under the age of 30, 10% had a traffic violation in the last 12 months. We will use D to represent the event 'Licensed driver is 30 years of age or older' and V to represent the event 'A traffic violation was received in the last 12 months'. How would a fully labeled tree diagram look when representing the above information. Including all marginal, conditional and joint probabilities.

What would the probability of a randomly selected licensed driver being under the age of 30 and having a traffic violation in the last 12 months.

What is the probability of a randomly selected licensed driver having a traffic violation in the last 12 months.

If a driver has just been charged with a traffic violation, what is the probability that the driver is under 30 years of age.