Use the survey results to find the probability that a respondent has a​ pet, given that the respondent has had a pet.

37​% have a pet now and have had a pet.

63​% do not have a pet now.

81​% have had a pet.

19​% do not have a pet now and have never had a pet.

The Probability that the respondent has a pet given that the respondent has had a pet is ?

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Answer:

Probability that the respondent has a pet given that the respondent has had a pet is  [tex]\frac{37}{81}[/tex]  or 0.46.

Step-by-step explanation:

We are given the following results below;

37​% have a pet now and have had a pet.

63​% do not have a pet now.

81​% have had a pet.

19​% do not have a pet now and have never had a pet.

Let event B = respondent has a pet now

Now, Probability that the respondent has had a pet = P(A) = 0.81

Probability that the respondent has a pet now and has had a pet = [tex]P(A \bigcap B)[/tex] = 0.37

So, Probability that the respondent has a pet given that the respondent has had a pet is given by = P(B/A)

This conditional probability is solved as ;

     P(B/A)  =  [tex]\frac{P(A \bigcap B)}{P(A)}[/tex]

                 =  [tex]\frac{0.37}{0.81}[/tex]  = 0.46.