Table 11.

Summary Statistics of the Four Considered Covariates.

Covariate	Summary statistics
Gender	Female: 694			Male: 338
Experience	Yes: 420			No: 612
Mode	Online: 952			Offline: 80
	$x_{\min }$	$x_{0.25}$	$x_{\mathrm{med}}$	$\overline{x}$	$x_{0.75}$	$x_{\max }$
Age	16	26	33	35.10	44	77

Note. For the categorical variables gender, experience, and mode the frequency distribution is displayed, while for the numeric variable age the minimum $x_{\min }$, the first quartile $x_{0.25}$, the median $x_{\mathrm{med}}$, the mean $\overline{x}$, the third quartile $x_{0.75}$, and the maximum $x_{\max }$ are listed.