In a certain community, 20% of the families own a dog, and 25% of the families that own a dog also own a cat. It is also known that 29% of all the families own a cat. What is the probability that a randomly selected family owns a dog?

The probability that a randomly selected family owns a dog, given that it doesn't own a cat, is approximately 21.12%.

Step-by-step explanation:

Let  P(D)  be the event that a randomly selected family owns a dog.

Let  P(C)  be the event that a randomly selected family owns a cat.

Then:  probability is

P (D) = 0.20

P(C) = 0.29

P(C|D) = 0.25

So, as we know

      P(D|¬ C) = P ( D ∩ ¬ C )/ P ( ¬ C )

then,

   P(D|¬ C)  

Then, the probability that a random selected family owns a dog is 0.2112

answer: the answer to your question is parallel

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm