In: Statistics and Probability
1. Suppose there is a 12.5% probability that a randomly selected person aged 35 years or older is a smoker. In addition, there is a 11.9% probability that a randomly selected person aged 35 years or older is female, given that he or she smokes.
What is the probability that a randomly selected person aged 35 years or older is female and smokes?
2. For the month of May in a certain city, 71% of the days are cloudy. Also in the month of May
in the same city, 55% of the days are cloudy and snowy.
What is the probability that a randomly selected day in May will be snowy if it is cloudy?
3. For two events, A and B, P(A)equals=.2, P(B)equals=.4, and P(A∩B)equals=. 1.
Find P(A|B).
Find P(B|A).
Are A and B independent events?
Ans1 let A be the event that randomly selected person aged 35 years or older is a smoker.