Probability all four of selected homes have security system
Assume there are 22 homes in the Quail Creek area and 10 of them have a security system. Four homes are selected at random:
(a) What is the probability all four of the selected homes have a security system? (Round your answer to 4 decimal places.)
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What is the probability all four of the selected homes have a security system? (Round your answer to 4 decimal places.)
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