Suppose there is a 21.9% probability that a randomly selected person aged 25 years or older is a smoker. In​ addition, there is a 26.9% probability that a randomly selected person aged 25 years or...

Suppose there is a

probability that a randomly selected person aged

years or older is a

In​ addition, there is a

probability that a randomly selected person aged

years or older is

given that he or she

What is the probability that a randomly selected person aged

years or older is

and

Would it be unusual to randomly select a person aged

years or older who is

and smokes