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Forty percent of the homes constructed in the Quail Creek

Forty percent of the homes constructed in the Quail Creek area include a security system.

Three homes are selected at random:

a. What is the probability all three of the selected homes have a security system?

b. What is the probability none of the three selected homes has a security system?

c. What is the probability at least one of the selected homes has a security system?

d. Did you assume the events to be dependent or independent?

Three homes are selected at random:

a. What is the probability all three of the selected homes have a security system?

b. What is the probability none of the three selected homes has a security system?

c. What is the probability at least one of the selected homes has a security system?

d. Did you assume the events to be dependent or independent?

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