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HELP WITH ALL , THANKS ! The TSA an extra screening on every 20th passenger who...

HELP WITH ALL , THANKS !

The TSA an extra screening on every 20th passenger who walks through security in an airport. What type of sampling scheme is being used?

  • Systematic
  • Stratified
  • Convenience
  • Simple random

An Engineer selects 10 samples at random from each of the 5 production lines. Which type of sampling in use?

  • Stratified
  • Cluster
  • Convenience
  • Simple random

An inspector randomly chooses 1 pallet of materials and inspects each unit in the pallet. This is an example of what type of sampling?

  • Cluster
  • Stratified
  • Convenience
  • Systematic

Each unit of production for a shift is assigned a unique number. 25 of these numbers are randomly chosen, and the corresponding units are held for inspection. What type of sampling scheme is being used?

  • Simple random
  • Convenience
  • Stratified
  • Systematic
math   Statistics-And-Probability   
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