Suppose there are 18 homes in the Quail Creek area as well as 9 of them have the security system. Four homes are chosen at random:
(a) Determine the probability all four of the chosen homes have a security system?
Probability
(b) Compute the probability none of the four selected homes have the security system?
Probability
(c) Estimate the probability at least one of the chosen homes has a security system?
Probability