Quality Control and Defective Item Inspection Exercise

Quality Control and Defective Item Inspection

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Quality Control and Defective Item Inspection

Apply compound probability concepts to quality control scenarios involving inspections of defective items.

Questions

  1. MultiChoice

    Factory produces items: 90% Good (G), 10% Defective (D). Inspect 2 independent items. What is P(both Good)?

  2. MultiChoice

    Inspect 2 independent items with P(Defective)=0.10. What is P(both Defective)?

  3. MultiChoice

    Inspect 2 independent items (P(G)=0.9, P(D)=0.1). What is P(1st Good AND 2nd Defective)?

  4. MultiChoice

    Inspect 2 independent items (P(G)=0.9, P(D)=0.1). What is P(at least one Defective)?

  5. MultiChoice

    Batch of 10 items has 2 Defective and 8 Good. Test 2 without replacement. What is P(1st Defective)?

  6. MultiChoice

    Batch of 10 items (2 Defective, 8 Good). Test 2 without replacement. What is P(both Defective)?

  7. MultiChoice

    Batch of 10 items (2 Defective, 8 Good). Test 2 without replacement. What is P(both Good)?

  8. MultiChoice

    Batch of 10 items (2 Defective, 8 Good). Test 2 without replacement. What is P(1st Good, 2nd Defective)?

  9. MultiChoice

    Batch of 10 items (2 Defective, 8 Good). Test 2 without replacement. What is P(1st Defective, 2nd Good)?

  10. MultiChoice

    In this inspection tree diagram, what is the sum of probabilities of all 4 final branch outcomes?

  11. MultiChoice

    Test 3 independent items with P(Defective)=0.1. What is P(all 3 Defective)?

  12. MultiChoice

    Test 3 independent items with P(Good)=0.9. What is P(all 3 Good)?