Random-number methods in this sampling approach are used to:

Random-number methods in this sampling approach are used to:

• A. Determine the material type
• B. Determine the color of sample
• C. Replace physical sampling
• D. Ensure randomness in selecting sample locations

Answer: (D)

Random-number methods in this sampling approach are used to ensure randomness in selecting sample locations. By assigning numbers to potential sampling points and using random numbers to pick which points to sample, you prevent intentional or unintentional bias and get a set of samples that better represents the entire material or batch. This helps capture variability across the lot rather than just easy-to-reach spots. These methods don’t determine material type or color, which are intrinsic properties, nor do they replace physical sampling; they optimize the sampling plan to achieve representativeness.

Random-number methods in this sampling approach are used to ensure randomness in selecting sample locations. By assigning numbers to potential sampling points and using random numbers to pick which points to sample, you prevent intentional or unintentional bias and get a set of samples that better represents the entire material or batch. This helps capture variability across the lot rather than just easy-to-reach spots. These methods don’t determine material type or color, which are intrinsic properties, nor do they replace physical sampling; they optimize the sampling plan to achieve representativeness.