(Solved): Assume there are 12 homes in the Quail Creek area and 4 of them have a security system three homes ...

Assume there are 12 homes in the Quail Creek area and 4 of them have a security system three homes me selected mansom: a. What is the probability all three of the selected homes have a security system? (Round your answer to 4 decimat places) b. What is the probability none of the three selected homes has a security sysdem? (Round your answer to 4 decimal places.)