Quality Control Inspectors Often Randomly Select Items from an Assembly

question 149

Multiple Choice

Quality control inspectors often randomly select items from an assembly line for inspection.For example,they may take the twelfth,seventeenth,forty-fourth,and sixtieth items.What reinforcement schedule are they using? (Assume that the items are unevenly spaced.)

• A)Continuous
• B)Fixed-ratio
• C)Fixed-interval
• D)Variable-ratio
• E)Variable-interval