1.2 The Language of Variation: Variables

• What do numerical variables represent in statistics?

  Quantities that can be counted
• What type of numerical variable can take on any value within a range?

  Continuous
• Match the numerical variable type with its definition:

  Discrete ↔️ Can only take on certain distinct values

  Continuous ↔️ Can take on any value within a range
• What are the two primary categories of variables in statistics?

  Categorical and numerical
• Categorical variables represent characteristics or groupings
• Discrete numerical variables can only take on certain distinct values
• What is an example of a discrete numerical variable?

  Number of siblings
• Eye color is an example of a categorical
• Categorical variables represent quantities that can be counted or measured.

  False
• Discrete numerical variables can take on any value within a range.

  False
• Continuous numerical variables are measurable and can take on any value within a range.


  True
• Weight is an example of a continuous numerical variable.


  True
• The number of students in a class is an example of a numerical variable.

  True
• What do numerical variables represent in statistics?

  Quantities that can be measured
• What is the key difference between categorical and numerical variables?

  Categorical classifies, numerical quantifies