In a subdivison, 67% of homes have detached garages, 32% have a patio, and 13% have both. What is the probability that a house has a pation if you know that it has a detached garage? Please explain how you did the work, thanks.

Answer 1

"What is the probability that a house has a pation if you know that it has a detached garage?"
You're looking at the probability of a house that has both, therefore 13%.

Answer 2

a class of 14 girls and 15 boys if all of their name are put on separate slips in a hat what is the probsbility of each person name being drawed