[ ] c. What is the mean and variance of the number of defectives of the sample in part b) ?

[ ] c. What is the mean and variance of the number of defectives of the sample in part b) ? [ ] d. If we were to check the fuses one by one then, i) What is the probability of getting the first defective fuse? [ ] ii) What is the probability of getting the 4th defective fuse on the 8 trial? 5) In the daily production of a certain kind of wire, the number of defects per foot Y is assumed to have a Poisson distribution with mean = 2. i) What is the probability of observing 3 defects in 4 feet of wire?

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