quality control

please solve all parts

a. 7. ISO stands for: International Standards Organization b. International Organization for Standards International Organization Society d. International Society for Organizations c. a. 8. A variable is: a measurable quality characteristic b. a "good-bad" type characteristic c. synonymous with attribute d. none of the above 9. The type of frequency distribution which is most commonly found in quality work is: a. hypergeometric b. uniform normal d. bionomial C. a. 10. Which of the following is a measure of the central tendency? mode b. standard deviation range d. none of the above c. a. 11. An R chart is used rather than an s chart because it is: easier to understand and calculate b. more sensitive to variations more accurate d. all of the above C. a. 12. Which of the following cases would be considered the least desirable in terms of the relationship of the specification to the process spread? 60 > U-L b. 60 = U-L 60