The crime is murder in these novels, and the plots include accessories such as floor plans, maps, and railway timetables. The appeal of Golden Age fiction is the challenge of the intellectual game.
exogenous variables. (mathematics). In a mathematical model, the independent variables, which are predetermined and given outside the model. 1  Facebook. 2  Twitter.
The independent variable is the amount of light and the moth's reaction is the dependent variable. A change in the independent variable directly causes a change in the dependent variable. If the dependent and independent variables are plotted on a graph, the x-axis would be the independent variable and the y-axis would be the dependent variable.