Question 2. Fill in the blank. (30 points, 5 points each) 1. Large change in raw materials is a source of variation. 2. The tool that helps us visualize the items charted as "vital few" and "trivial many" is 3. Which graphical tool is best for developing a complete picture of the relationship between two variables? 4. A factory has historically produced defective parts 1% of the time. Samples of 50 independent parts produced in the factory are tested for the presence or absence of a defect. The resulting data (the number of parts that are defective) form which type of distribution? 5. What is used to identify the first pass rate through a series of processes? 6. Gas pump nozzle shape difference in a gas station is an example of what type of error proofing