How to compute probability

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Forty percent of the homes constructed in the Quail Creek area include a security system. Three homes were selected at random. What is the probability all three homes selected have a security system? What is the probability none of them have a security system? What is the probability at least one of them has a security system? Do you assume the events to be dependent or independent?

Reference no: EM1399922

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How to compute probability : Forty percent of the homes constructed in the Quail Creek area include a security system. Three homes were selected at random. What is the probability all three homes selected have a security system?

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