SOLUTION: Of the 1260 households in a small town, 632 have dogs, 568 have cats, and 114 have both types of pets. If a household is chosen at random, what is the probability that the househol

Algebra ->  Quadratic Equations and Parabolas  -> Quadratic Equation Customizable Word Problems -> SOLUTION: Of the 1260 households in a small town, 632 have dogs, 568 have cats, and 114 have both types of pets. If a household is chosen at random, what is the probability that the househol      Log On


   

Question 22470: Of the 1260 households in a small town, 632 have dogs, 568 have cats, and 114 have both types of pets. If a household is chosen at random, what is the probability that the household has either type of pet?
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
P(A or B) = P(A) + P(B) - P (A and B)
P(cats or dogs) = P(cats) + P(dogs) - P(cats and dogs)
= 586/1260 + 632/1260 - 114/1260
Cheers,
Stan H.