Data - values of qualitative or quantitative variables, belonging to a set of items.

A scatterplot is needed to assess the linearity assumption underlying each correlation or regression coefficient between pairs of quantitative variables.

Of these, salary is the only quantitative variable and thus measurable.

Two of the 12 qualitative and seven of the 13 quantitative variables which were studied in univariate analysis significantly influenced patient's survival at six weeks.

Three quantitative variables are often useful to consider for games:

Dummy variables are incorporated in the same way as quantitative variables are included (as explanatory variables) in regression models.

They are statistically control for the effects of quantitative explanatory variables (also called covariates or control variables).

The F-test in one-way analysis of variance is used to assess whether the expected values of a quantitative variable within several pre-defined groups differ from each other.

The quadrant count ratio (QCR) is a measure of the association between two quantitative variables.

Groups were compared using the Student's t test for comparison of two groups for quantitative variables.