Relation between driving factor & performance factor - Metrology & Quality Control

Q.  Which among the following depicts positive and negative relation between driving factor and performance factor?
- Published on 07 Aug 15

a. Scatter diagram
b. histogram
c. check sheet
d. none of the above

ANSWER: Scatter diagram
 

    Discussion

  • Sravanthi   -Posted on 27 Oct 15
    - Scatter diagram is a mathematical approach and is used for studying correlation between factors which are related to each other. If a strong relation exists between the variables, then change in driving variable changes quality characteristics.

    - The different types of relations observed are:

    1) Negative relationship: In this relation, driving factor is inversely proportional to performance factor.

    2) Positive relationship: In this relation, driving factor is directly proportional to performance factor.

    3) No relation: Variation in driving factor or performance factors have no effect on each other.

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