P(A) = 742/10000 = 0.0742, P(B) = 732/10000 = 0.0732, P(At least one of A and B) = 1351/10000 = 0.1351
(a) P(Neither A nor B) = 1 - P(At least one of A and B) = 1 - 0.1351 = 0.8649
(b) n(A) = 742, n(B) = 732, n(A or B) = 1351
n(A and B) = n(A) + n(B) – n(A or B) = 742 + 732 – 1351 = 123
n(B but not A) = n(B) – n(A and B) = 732 – 123 = 609
P(B but not A) = 609/10000 = 0.0609
0r2 points Human visual wetting, knee visibility, volds) and even the degree to which a joint...
Ask Yout Teache of solder joints on printed circuit boards can be very subjective. Part of the problem stems from the numerous types of solder defects (e.g. pad non- Human visual in wetting, knee visibility, voids) and even the degree to which a joint possesses one or more of these defects. Consequently, even highly trained inspectors can disagree on the disposition of a particular joint. In one batch of 10,000 jolints, inspector A found 742 that were judged defective, inspector...
2. In visual inspection of solder joints, inspector A found 724 defects out of 10000 boards inspected Inspector B found 751 out of same 10000 boards. 1159 boards were judged defective by at least one of the inspectors. If you randomly choose a circuit board, what is the probability it passed inspector A, but rejected by inspector B?