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El 1% de las videocámaras vendidas por la Phil´s Photo Shop, tiene un defecto en su estuche. Se seleccionan al azar cuatro estuches de lo vendido recientemente. Encuentre la probabilidad de que exactamente uno esté defectuoso

1 Answer

7 votes

9514 1404 393

Answer:

3.88%

Explanation:

The probability that 1 is defective and 3 are not (out of four) is ...

P(1 of 4) = 4(0.01)(0.99)^3 ≈ 0.0388 = 3.88%

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The multiplier of 4 comes from the number of ways that 1 can be chosen from 4.

answered
User Alexander Staubo
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