Assume there are 21 homes in the Quail Creek area and 9 of t

Assume there are 21 homes in the Quail Creek area and 9 of them have a security system. Six homes are selected at random:

What is the probability all six of the selected homes have a security system? (Round your answer to 4 decimal places.)

What is the probability none of the six selected homes has a security system? (Round your answer to 4 decimal places.)

What is the probability at least one of the selected homes has a security system? (Round your answer to 4 decimal places.)

Solution