It Is Known That Screws Produced by a Certain Company

question 49

Multiple Choice

It is known that screws produced by a certain company will be defective with a probability of .01, independently of each other.The company sells the screws in packages of 25 and offers a money-back guarantee that at most, 1 of the 25 screws is defective.Using Poisson approximation for binomial distribution, the probability that the company must replace a package is approximately _________

• A)0.01
• B)0.1947
• C)0.7788
• D)0.0265
• E)0.2211

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