Question

In: Statistics and Probability

1. Suppose there is a 12.5% probability that a randomly selected person aged 35 years or...

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?

Solutions

Expert Solution

Ans1 let A be the event that randomly selected person aged 35 years or older is a smoker.


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