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1. (4 points) When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let X

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1. (4 points) When circuit boards used in the manufacture of compact disc players are tested, the long-run percentage of defectives is 5%. Let X = the number of defective boards in a random sample of size n = 25. a. (One point) Determine P (X = 2) (Using the formula of the pm. b. (One point) Determine P(1 S X S 4) (Using the table). 0. (One point) Calculate the expected value of X. d. (One points) Calculate variance and standard deviation of X

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