Friday, February 1, 2008

Mathematical Relationships

Relationships describe the proximity of things to each other.

  • Mathematical relationships describe the proximity or presence of objects using one of the four measurement scales.
  • Human relationships describe the proximity of humans as measured by using one of the four measurement scales
Measurement Levels or Scales:

  1. nominal measurement -- things are either equal to or not equal to;
  2. ordinal measurement -- things are either equal to, less than, or more than;
  3. integer measurement -- things are not only equal or not equal but also how much more than or less than; and
  4. ratio measurement -- the absence of a condition or relationship.
Examples of measurement on the different levels or scales:

  1. Nominal relationship is the color of an object or the presence of a human relationship.
  2. Ordinal relationship is to describe the size of objects in comparison to one or more similar objects -- e.g., one object is bigger than, less than, or the same size as another object
  3. Interval measuresurement is to say it 2o degrees warmer today than yesterday or any day this week.
  4. Ratio level measurement is the quantity or value of money in a bank account -- e.g. a zero balance indicates the absence of the monetary value.

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