Quantitative variables are numeric. They represent a measurable quantity. Therefore, population would be a quantitative variable.
Qualitative variables, on the other hand, take on values that are names or labels. The color of a ball (e.g., red, green, blue) or the breed of a dog (e.g., collie, shepherd, terrier) would be examples of qualitative or categorical variables.
Quantitative variables can be further classified as discrete or continuous. If a variable can take on any value between its minimum value and its maximum value, it is called a continuous variable; otherwise, it is called a discrete variable.
Learn more about the different types of variable in statistics on Laerd.com.
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