The values of the quantitative variable are shown on the horizontal axis.
Suppose it is of interest to estimate the population mean, μ, for a quantitative variable.
Constructing a frequency distribution for a quantitative variable requires more care in defining the classes and the division points between adjacent classes.
Finally, the canopy cover, as a quantitative variable, was measured with one densitometer reading over the 2-m circular plot of each tropical ash individual.
Therefore, the relationships between hourly truck traffic volume and weather conditions were mapped with one quantitative variable (i.e., EHVF) and one categorical variable (i.e., seven categories).
Per blood product, a qualitative variable (transfusion yes or no) and a quantitative variable (amount of product in units) were generated.
This method can be seen as a process of turning a quantitative variable (one internal software class attribute in our case) into a discrete ordinal variable.
Paired comparisons between the distribution of quantitative variable in SF versus HPF group at each time point were also assessed with the Mann–Whitney test.
For comparisons of one qualitative variable and quantitative variable, Student's t test (parametric) or the Mann–Whitney test (nonparametric) was used at the 5% significance level.
A raw data REST API, located at http://socrdev.nursing.umich.edu 8080/users/var/[VARNAME] allows for retrieval of unfiltered quantitative variable data points.
To avoid any heterogeneity in the answers, qualitative variables were defined if necessary, and units of each quantitative variable were given in the questionnaire.
