Suppose that 66% of people own dogs. if you pick two people at random, what is the probability that they both own a dog?

probability of one person owning a dog = 0.66

probability of picking 2 people who own dogs  = 0.66 x 0.66 = 0.4356

Round answer as needed.

multiplication is multiplication.   it might feel harder depending on what level of math you are in, but generally it will be the same old stuff, while implementing some new concepts and methods of solving work.

shorter then the tree