SOLUTION: Sometimes stores offen incredibly good prices on a product to encourage people to shop at the store. The store usually carries only a few items at the discount price and does not g

Question 205375: Sometimes stores offen incredibly good prices on a product to encourage people to shop at the store. The store usually carries only a few items at the discount price and does not give out rain checks.
A new shipment of 9 VCRs, which will be offered at a very low price, are delivered. Unknown to manager, 4 of the VCRs are defective.
Determine the probability that at least one of the three VCRs sold is defective?
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A new shipment of 9 VCRs, which will be offered at a very low price, are delivered. Unknown to manager, 4 of the VCRs are defective.
Determine the probability that at least one of the three VCRs sold is defective?
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P(at least one is defective) = 1 - P(none of the three is defective)
= 1 - (5/9)^3 = 0.8286...
Cheers,
Stan H.
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