Teenage drivers pay more for automobile insurance than older drivers. also, many insurance companies offer discounts for teenage drivers that achieve good grades. assume that 20% of all teenage drivers are involved in accidents each year. assume that 10% of all teenage drivers have gpas that are 3.5 or above. of the teenage drivers involved in accidents, only 5% of them have gpas that are 3.5 or above. a) let a be the event that a teenager has a gpa of 3.5 or above. let b be the event that a teenage driver is involved in an accident this year. find p(a) and p(b).b) find p(a given b)c) find the probability that a randomly chosen teenage driver has a gpa of 3.5 or above and is involved in an accident this year.