595 semiconductor wafers contains wafers from three lots. The wafers are categorized by lot and by whether they conform to a thickness specification, with the results shown in the following table. A wafer is chosen at random from the population. Write your answer as a fraction or a decimal, rounded to four decimal places. Lot Conforming Nonconforming A 83 16 B 161 39 C 251 45 (a) What is the probability that the wafer is from Lot C? (b) What is the probability that the wafer is nonconforming? (c) What is the probability that the wafer is from Lot C and is nonconforming?
Quality control: A population of 595 semiconductor wafers contains wafers from three lots. The wafers are categorized by lot and by whether they conform to a thickness specification, with the results shown in the following table. A wafer is chosen at random from the population. Write your answer as a fraction or a decimal, rounded to four decimal places.
| Lot | Conforming | Nonconforming |
| A |
83
|
16
|
| B |
161
|
39
|
| C |
251
|
45
|
(a) What is the probability that the wafer is from Lot C?
(b) What is the probability that the wafer is nonconforming?
(c) What is the probability that the wafer is from Lot C and is nonconforming?
(d) Given that the wafer is from Lot C, what is the probability that it is nonconforming?
(e) Given that the wafer is nonconforming, what is the probability that it is from Lot C?
(f) Let E1 be the event that the wafer comes from Lot C, and let E2 be the event that the wafer is nonconforming. Are
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