Data Classification

Question 1

Define the term Nominal Data

Answer 1

A scale or measurement based on categories, with numbers in each category counted.

For example: gender, ethnicity, body fat

Question 2

Define the term Ordinal Data

Answer 2

A scale or measurement based on rankings. Difference between ranks is not quantified.

For example: tennis ladder tournament

Question 3

Define the term Interval Data

Answer 3

Parametric data which is a scale or measurement which has equal units or intervals, but no true zero.

For example: temperature

Question 4

Define the term Ratio Data

Answer 4

Parametric data which is a scale or measurement which has equal distance between points and has a true zero. It is also known as “the most complete scale of measurement”

For example: height, weight, mass, speed