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 guarantees that, at most, only one of the screws will be defective. If 2 or more screws are defective, the customer is entitled to his or her money back. 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)0.0264 e)0.2211
