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.
Independent and dependent variables are mathematical tools used in an experiment to keep track of what's going on. They allow you to maintain control over your experiment in a quantitative way. That is, using them, you will be able to measure your results and draw accurate conclusions.