SUPPLEMENTARY EXERCISES FOR CHAPTER 243P CDP CP DP CDP CP DP C P D0 950 70 950 70 985.PABCDP ABP CDP AB P CD0 980 9850 980 9850 9997.3.LetAdenote the event that the resistance is above specification, and letBdenote the event that the resistance isbelow specification. ThenAandBare mutually exclusive.(a)P(doesn’t meet specification) =P ABP AP B0 050 100 15(b)P BABPBABP ABP BP AB0 100 150 66675.LetRbe the event that the shipment is returned. LetD1be the event that the first fuse chosen is defective, letD2be the event that the second fuse chosen is defective, and letD3be the event that the third fuse chosen isdefective. Since the sample size of 3 is a small proportion of the population size of 10,000, it is reasonable totreat these events as independent, each with probability 0.1.P R1P Rc1P Dc1Dc2Dc310 930 271.(If dependence is taken into account, the answer to six significant digits is 0.271024.)
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