Question: 1)It is known that all items produced by a certain machine will be defective with a probability of 0.1, independently of each other.What is the

1)It is known that all items produced by a certain machine will be defective with a probability of 0.1, independently of each other.What is the probability that in a sample of four items, that exactly one will be defective? (assume binomial)

A.0.2916

B.0.7290

C.0.0270

D.0.8652

2)It is known that all items produced by a certain machine will be defective with a probability of 0.1, independently of each other.What is the probability that in a sample of three items, that at most one will be defective? (assume binomial)

A.0.9999

B.1.0000

C.0.9720

D.0.0000

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