Insurance company records indicate that 21.7% of all teenage drivers have been ticketed for speeding, 12.1% for going through a red light, and 7.2% have been ticketed for both.
What is the probability that a teenage driver has been issued a ticket for speeding but not for running a red light?
Given that a teenage driver have been ticketed for speeding, what is the probability that this driver has been issued a ticket for going through a red light as well?