Numeric variables are defined as

Numeric variables are defined as

• A. Numeric variables.
• B. Variables involving categories.
• C. Variables that are qualitative.
• D. Variables that have no scale.

Answer: (A)

Numeric variables are quantities expressed with numbers on a numeric scale, representing amounts or counts. They can be discrete, taking only specific values such as 0, 1, 2, or continuous, taking any value within a range like height or distance. Because they are numeric, these variables support arithmetic operations and summary statistics, enabling calculations like averages, totals, and standard deviations. This is in contrast to variables that involve categories or are qualitative, which classify observations into groups (such as gender or color) and do not carry arithmetic meaning. The idea that numeric variables have no scale is inaccurate, since the numeric values themselves define a scale with meaningful order and distance between values.

Numeric variables are quantities expressed with numbers on a numeric scale, representing amounts or counts. They can be discrete, taking only specific values such as 0, 1, 2, or continuous, taking any value within a range like height or distance. Because they are numeric, these variables support arithmetic operations and summary statistics, enabling calculations like averages, totals, and standard deviations. This is in contrast to variables that involve categories or are qualitative, which classify observations into groups (such as gender or color) and do not carry arithmetic meaning. The idea that numeric variables have no scale is inaccurate, since the numeric values themselves define a scale with meaningful order and distance between values.